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    REST Resource: projects.locations.tuningJobs

    Resource: TuningJob

    Represents a TuningJob that runs with Google owned models.

    Fields
    name string

    Output only. Identifier. Resource name of a TuningJob. Format: projects/{project}/locations/{location}/tuningJobs/{tuningJob}

    tunedModelDisplayName string

    Optional. The display name of the TunedModel . The name can be up to 128 characters long and can consist of any UTF-8 characters. For continuous tuning, tunedModelDisplayName will by default use the same display name as the pre-tuned model. If a new display name is provided, the tuning job will create a new model instead of a new version.

    description string

    Optional. The description of the TuningJob .

    customBaseModel string

    Optional. The user-provided path to custom model weights. Set this field to tune a custom model. The path must be a Cloud Storage directory that contains the model weights in .safetensors format along with associated model metadata files. If this field is set, the baseModel field must still be set to indicate which base model the custom model is derived from. This feature is only available for open source models.

    state enum ( JobState )

    Output only. The detailed state of the job.

    createTime string ( Timestamp format)

    Output only. time when the TuningJob was created.

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .

    startTime string ( Timestamp format)

    Output only. time when the TuningJob for the first time entered the JOB_STATE_RUNNING state.

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .

    endTime string ( Timestamp format)

    Output only. time when the TuningJob entered any of the following JobStates : JOB_STATE_SUCCEEDED , JOB_STATE_FAILED , JOB_STATE_CANCELLED , JOB_STATE_EXPIRED .

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .

    updateTime string ( Timestamp format)

    Output only. time when the TuningJob was most recently updated.

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .

    error object ( Status )

    Output only. Only populated when job's state is JOB_STATE_FAILED or JOB_STATE_CANCELLED .

    labels map (key: string, value: string)

    Optional. The labels with user-defined metadata to organize TuningJob and generated resources such as Model and Endpoint .

    label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed.

    See https://goo.gl/xmQnxf for more information and examples of labels.

    experiment string

    Output only. The Experiment associated with this TuningJob .

    tunedModel object ( TunedModel )

    Output only. The tuned model resources associated with this TuningJob .

    tuningDataStats object ( TuningDataStats )

    Output only. The tuning data statistics associated with this TuningJob .

    pipelineJob
    (deprecated)     string

    Output only. The resource name of the PipelineJob associated with the TuningJob . Format: projects/{project}/locations/{location}/pipelineJobs/{pipelineJob} .

    encryptionSpec object ( EncryptionSpec )

    Customer-managed encryption key options for a TuningJob. If this is set, then all resources created by the TuningJob will be encrypted with the provided encryption key.

    outputUri string

    Optional. Cloud Storage path to the directory where tuning job outputs are written to. This field is only available and required for open source models.

    evaluateDatasetRuns[] object ( EvaluateDatasetRun )

    Output only. Evaluation runs for the Tuning Job.

    satisfiesPzs boolean

    Output only. reserved for future use.

    satisfiesPzi boolean

    Output only. reserved for future use.

    source_model Union type
    source_model can be only one of the following:
    baseModel string

    The base model that is being tuned. See Supported models .

    tuning_spec Union type
    tuning_spec can be only one of the following:
    supervisedTuningSpec object ( SupervisedTuningSpec )

    Tuning Spec for Supervised Fine Tuning.

    distillationSpec object ( DistillationSpec )

    Tuning Spec for Distillation.

    partnerModelTuningSpec object ( PartnerModelTuningSpec )

    Tuning Spec for open sourced and third party Partner models.

    veoTuningSpec object ( VeoTuningSpec )

    Tuning Spec for Veo Tuning.

    JSON representation 
     { 
 "name" 
 : 
 string 
 , 
 "tunedModelDisplayName" 
 : 
 string 
 , 
 "description" 
 : 
 string 
 , 
 "customBaseModel" 
 : 
 string 
 , 
 "state" 
 : 
 enum (  JobState 
 
) 
 , 
 "createTime" 
 : 
 string 
 , 
 "startTime" 
 : 
 string 
 , 
 "endTime" 
 : 
 string 
 , 
 "updateTime" 
 : 
 string 
 , 
 "error" 
 : 
 { 
 object (  Status 
 
) 
 } 
 , 
 "labels" 
 : 
 { 
 string 
 : 
 string 
 , 
 ... 
 } 
 , 
 "experiment" 
 : 
 string 
 , 
 "tunedModel" 
 : 
 { 
 object (  TunedModel 
 
) 
 } 
 , 
 "tuningDataStats" 
 : 
 { 
 object (  TuningDataStats 
 
) 
 } 
 , 
 "pipelineJob" 
 : 
 string 
 , 
 "encryptionSpec" 
 : 
 { 
 object (  EncryptionSpec 
 
) 
 } 
 , 
 "serviceAccount" 
 : 
 string 
 , 
 "outputUri" 
 : 
 string 
 , 
 "evaluateDatasetRuns" 
 : 
 [ 
 { 
 object (  EvaluateDatasetRun 
 
) 
 } 
 ] 
 , 
 "satisfiesPzs" 
 : 
 boolean 
 , 
 "satisfiesPzi" 
 : 
 boolean 
 , 
 // source_model 
 "baseModel" 
 : 
 string 
 // Union type 
 // tuning_spec 
 "supervisedTuningSpec" 
 : 
 { 
 object (  SupervisedTuningSpec 
 
) 
 } 
 , 
 "distillationSpec" 
 : 
 { 
 object (  DistillationSpec 
 
) 
 } 
 , 
 "partnerModelTuningSpec" 
 : 
 { 
 object (  PartnerModelTuningSpec 
 
) 
 } 
 , 
 "veoTuningSpec" 
 : 
 { 
 object (  VeoTuningSpec 
 
) 
 } 
 // Union type 
 }

    SupervisedTuningSpec

    Tuning Spec for Supervised Tuning for first party models.

    Fields
    trainingDatasetUri string

    Required. Training dataset used for tuning. The dataset can be specified as either a Cloud Storage path to a JSONL file or as the resource name of a Vertex Multimodal Dataset.

    validationDatasetUri string

    Optional. Validation dataset used for tuning. The dataset can be specified as either a Cloud Storage path to a JSONL file or as the resource name of a Vertex Multimodal Dataset.

    hyperParameters object ( SupervisedHyperParameters )

    Optional. Hyperparameters for SFT.

    exportLastCheckpointOnly boolean

    Optional. If set to true, disable intermediate checkpoints for SFT and only the last checkpoint will be exported. Otherwise, enable intermediate checkpoints for SFT. Default is false.

    evaluationConfig object ( EvaluationConfig )

    Optional. Evaluation Config for Tuning Job.

    tuningMode enum ( TuningMode )

    Tuning mode.

    JSON representation 
     { 
 "trainingDatasetUri" 
 : 
 string 
 , 
 "validationDatasetUri" 
 : 
 string 
 , 
 "hyperParameters" 
 : 
 { 
 object (  SupervisedHyperParameters 
 
) 
 } 
 , 
 "exportLastCheckpointOnly" 
 : 
 boolean 
 , 
 "evaluationConfig" 
 : 
 { 
 object (  EvaluationConfig 
 
) 
 } 
 , 
 "tuningMode" 
 : 
 enum (  TuningMode 
 
) 
 }

    SupervisedHyperParameters

    Hyperparameters for SFT.

    Fields
    epochCount string ( int64 format)

    Optional. Number of complete passes the model makes over the entire training dataset during training.

    learningRateMultiplier number

    Optional. Multiplier for adjusting the default learning rate. Mutually exclusive with learningRate . This feature is only available for 1P models.

    learningRate number

    Optional. Learning rate for tuning. Mutually exclusive with learningRateMultiplier . This feature is only available for open source models.

    adapterSize enum ( AdapterSize )

    Optional. Adapter size for tuning.

    batchSize string ( int64 format)

    Optional. Batch size for tuning. This feature is only available for open source models.

    JSON representation 
     { 
 "epochCount" 
 : 
 string 
 , 
 "learningRateMultiplier" 
 : 
 number 
 , 
 "learningRate" 
 : 
 number 
 , 
 "adapterSize" 
 : 
 enum (  AdapterSize 
 
) 
 , 
 "batchSize" 
 : 
 string 
 }

    AdapterSize

    Supported adapter sizes for tuning.

    Enums
    ADAPTER_SIZE_UNSPECIFIED Adapter size is unspecified.
    ADAPTER_SIZE_ONE Adapter size 1.
    ADAPTER_SIZE_TWO Adapter size 2.
    ADAPTER_SIZE_FOUR Adapter size 4.
    ADAPTER_SIZE_EIGHT Adapter size 8.
    ADAPTER_SIZE_SIXTEEN Adapter size 16.
    ADAPTER_SIZE_THIRTY_TWO Adapter size 32.

    EvaluationConfig

    Evaluation Config for Tuning Job.

    Fields
    metrics[] object ( Metric )

    Required. The metrics used for evaluation.

    outputConfig object ( OutputConfig )

    Required. Config for evaluation output.

    autoraterConfig object ( AutoraterConfig )

    Optional. Autorater config for evaluation.

    JSON representation 
     { 
 "metrics" 
 : 
 [ 
 { 
 object (  Metric 
 
) 
 } 
 ] 
 , 
 "outputConfig" 
 : 
 { 
 object (  OutputConfig 
 
) 
 } 
 , 
 "autoraterConfig" 
 : 
 { 
 object (  AutoraterConfig 
 
) 
 } 
 }

    Metric

    The metric used for running evaluations.

    Fields
    aggregationMetrics[] enum ( AggregationMetric )

    Optional. The aggregation metrics to use.

    metric_spec Union type
    The spec for the metric. It would be either a pre-defined metric, or a inline metric spec. metric_spec can be only one of the following:
    pointwiseMetricSpec object ( PointwiseMetricSpec )

    Spec for pointwise metric.

    pairwiseMetricSpec object ( PairwiseMetricSpec )

    Spec for pairwise metric.

    exactMatchSpec object ( ExactMatchSpec )

    Spec for exact match metric.

    bleuSpec object ( BleuSpec )

    Spec for bleu metric.

    rougeSpec object ( RougeSpec )

    Spec for rouge metric.

    JSON representation 
     { 
 "aggregationMetrics" 
 : 
 [ 
 enum (  AggregationMetric 
 
) 
 ] 
 , 
 // metric_spec 
 "pointwiseMetricSpec" 
 : 
 { 
 object (  PointwiseMetricSpec 
 
) 
 } 
 , 
 "pairwiseMetricSpec" 
 : 
 { 
 object (  PairwiseMetricSpec 
 
) 
 } 
 , 
 "exactMatchSpec" 
 : 
 { 
 object (  ExactMatchSpec 
 
) 
 } 
 , 
 "bleuSpec" 
 : 
 { 
 object (  BleuSpec 
 
) 
 } 
 , 
 "rougeSpec" 
 : 
 { 
 object (  RougeSpec 
 
) 
 } 
 // Union type 
 }

    PointwiseMetricSpec

    Spec for pointwise metric.

    Fields
    customOutputFormatConfig object ( CustomOutputFormatConfig )

    Optional. CustomOutputFormatConfig allows customization of metric output. By default, metrics return a score and explanation. When this config is set, the default output is replaced with either: - The raw output string. - A parsed output based on a user-defined schema. If a custom format is chosen, the score and explanation fields in the corresponding metric result will be empty.

    metricPromptTemplate string

    Required. Metric prompt template for pointwise metric.

    systemInstruction string

    Optional. System instructions for pointwise metric.

    JSON representation 
     { 
 "customOutputFormatConfig" 
 : 
 { 
 object (  CustomOutputFormatConfig 
 
) 
 } 
 , 
 "metricPromptTemplate" 
 : 
 string 
 , 
 "systemInstruction" 
 : 
 string 
 }

    CustomOutputFormatConfig

    Spec for custom output format configuration.

    Fields
    custom_output_format_config Union type
    Custom output format configuration. custom_output_format_config can be only one of the following:
    returnRawOutput boolean

    Optional. Whether to return raw output.

    JSON representation 
     { 
 // custom_output_format_config 
 "returnRawOutput" 
 : 
 boolean 
 // Union type 
 }

    PairwiseMetricSpec

    Spec for pairwise metric.

    Fields
    candidateResponseFieldName string

    Optional. The field name of the candidate response.

    baselineResponseFieldName string

    Optional. The field name of the baseline response.

    customOutputFormatConfig object ( CustomOutputFormatConfig )

    Optional. CustomOutputFormatConfig allows customization of metric output. When this config is set, the default output is replaced with the raw output string. If a custom format is chosen, the pairwiseChoice and explanation fields in the corresponding metric result will be empty.

    metricPromptTemplate string

    Required. Metric prompt template for pairwise metric.

    systemInstruction string

    Optional. System instructions for pairwise metric.

    JSON representation 
     { 
 "candidateResponseFieldName" 
 : 
 string 
 , 
 "baselineResponseFieldName" 
 : 
 string 
 , 
 "customOutputFormatConfig" 
 : 
 { 
 object (  CustomOutputFormatConfig 
 
) 
 } 
 , 
 "metricPromptTemplate" 
 : 
 string 
 , 
 "systemInstruction" 
 : 
 string 
 }

    ExactMatchSpec

    This type has no fields.

    Spec for exact match metric - returns 1 if prediction and reference exactly matches, otherwise 0.

    BleuSpec

    Spec for bleu score metric - calculates the precision of n-grams in the prediction as compared to reference - returns a score ranging between 0 to 1.

    Fields
    useEffectiveOrder boolean

    Optional. Whether to useEffectiveOrder to compute bleu score.

    JSON representation 
     { 
 "useEffectiveOrder" 
 : 
 boolean 
 }

    RougeSpec

    Spec for rouge score metric - calculates the recall of n-grams in prediction as compared to reference - returns a score ranging between 0 and 1.

    Fields
    rougeType string

    Optional. Supported rouge types are rougen[1-9], rougeL, and rougeLsum.

    useStemmer boolean

    Optional. Whether to use stemmer to compute rouge score.

    splitSummaries boolean

    Optional. Whether to split summaries while using rougeLsum.

    JSON representation 
     { 
 "rougeType" 
 : 
 string 
 , 
 "useStemmer" 
 : 
 boolean 
 , 
 "splitSummaries" 
 : 
 boolean 
 }

    AggregationMetric

    The aggregation metrics supported by EvaluationService.EvaluateDataset.

    Enums
    AGGREGATION_METRIC_UNSPECIFIED Unspecified aggregation metric.
    AVERAGE Average aggregation metric. Not supported for Pairwise metric.
    MODE Mode aggregation metric.
    STANDARD_DEVIATION Standard deviation aggregation metric. Not supported for pairwise metric.
    VARIANCE Variance aggregation metric. Not supported for pairwise metric.
    MINIMUM Minimum aggregation metric. Not supported for pairwise metric.
    MAXIMUM Maximum aggregation metric. Not supported for pairwise metric.
    MEDIAN Median aggregation metric. Not supported for pairwise metric.
    PERCENTILE_P90 90th percentile aggregation metric. Not supported for pairwise metric.
    PERCENTILE_P95 95th percentile aggregation metric. Not supported for pairwise metric.
    PERCENTILE_P99 99th percentile aggregation metric. Not supported for pairwise metric.

    OutputConfig

    Config for evaluation output.

    Fields
    destination Union type
    The destination for evaluation output. destination can be only one of the following:
    gcsDestination object ( GcsDestination )

    Cloud storage destination for evaluation output.

    JSON representation 
     { 
 // destination 
 "gcsDestination" 
 : 
 { 
 object (  GcsDestination 
 
) 
 } 
 // Union type 
 }

    AutoraterConfig

    The configs for autorater. This is applicable to both EvaluateInstances and EvaluateDataset.

    Fields
    autoraterModel string

    Optional. The fully qualified name of the publisher model or tuned autorater endpoint to use.

    Publisher model format: projects/{project}/locations/{location}/publishers/*/models/*

    Tuned model endpoint format: projects/{project}/locations/{location}/endpoints/{endpoint}

    generationConfig object ( GenerationConfig )

    Optional. Configuration options for model generation and outputs.

    samplingCount integer

    Optional. Number of samples for each instance in the dataset. If not specified, the default is 4. Minimum value is 1, maximum value is 32.

    flipEnabled boolean

    Optional. Default is true. Whether to flip the candidate and baseline responses. This is only applicable to the pairwise metric. If enabled, also provide PairwiseMetricSpec.candidate_response_field_name and PairwiseMetricSpec.baseline_response_field_name. When rendering PairwiseMetricSpec.metric_prompt_template, the candidate and baseline fields will be flipped for half of the samples to reduce bias.

    JSON representation 
     { 
 "autoraterModel" 
 : 
 string 
 , 
 "generationConfig" 
 : 
 { 
 object (  GenerationConfig 
 
) 
 } 
 , 
 "samplingCount" 
 : 
 integer 
 , 
 "flipEnabled" 
 : 
 boolean 
 }

    GenerationConfig

    Generation config.

    Fields
    stopSequences[] string

    Optional. Stop sequences.

    responseMimeType string

    Optional. Output response mimetype of the generated candidate text. Supported mimetype: - text/plain : (default) Text output. - application/json : JSON response in the candidates. The model needs to be prompted to output the appropriate response type, otherwise the behavior is undefined. This is a preview feature.

    responseModalities[] enum ( Modality )

    Optional. The modalities of the response.

    thinkingConfig object ( ThinkingConfig )

    Optional. Config for thinking features. An error will be returned if this field is set for models that don't support thinking.

    modelConfig
    (deprecated)     object ( ModelConfig )

    Optional. Config for model selection.

    temperature number

    Optional. Controls the randomness of predictions.

    topP number

    Optional. If specified, nucleus sampling will be used.

    topK number

    Optional. If specified, top-k sampling will be used.

    candidateCount integer

    Optional. Number of candidates to generate.

    maxOutputTokens integer

    Optional. The maximum number of output tokens to generate per message.

    responseLogprobs boolean

    Optional. If true, export the logprobs results in response.

    logprobs integer

    Optional. Logit probabilities.

    presencePenalty number

    Optional. Positive penalties.

    frequencyPenalty number

    Optional. Frequency penalties.

    seed integer

    Optional. Seed.

    responseSchema object ( Schema )

    Optional. The Schema object allows the definition of input and output data types. These types can be objects, but also primitives and arrays. Represents a select subset of an OpenAPI 3.0 schema object . If set, a compatible responseMimeType must also be set. Compatible mimetypes: application/json : Schema for JSON response.

    responseJsonSchema value ( Value format)

    Optional. Output schema of the generated response. This is an alternative to responseSchema that accepts JSON Schema .

    If set, responseSchema must be omitted, but responseMimeType is required.

    While the full JSON Schema may be sent, not all features are supported. Specifically, only the following properties are supported:

    • $id
    • $defs
    • $ref
    • $anchor
    • type
    • format
    • title
    • description
    • enum (for strings and numbers)
    • items
    • prefixItems
    • minItems
    • maxItems
    • minimum
    • maximum
    • anyOf
    • oneOf (interpreted the same as anyOf )
    • properties
    • additionalProperties
    • required

    The non-standard propertyOrdering property may also be set.

    Cyclic references are unrolled to a limited degree and, as such, may only be used within non-required properties. (Nullable properties are not sufficient.) If $ref is set on a sub-schema, no other properties, except for than those starting as a $ , may be set.

    routingConfig object ( RoutingConfig )

    Optional. Routing configuration.

    audioTimestamp boolean

    Optional. If enabled, audio timestamp will be included in the request to the model.

    mediaResolution enum ( MediaResolution )

    Optional. If specified, the media resolution specified will be used.

    speechConfig object ( SpeechConfig )

    Optional. The speech generation config.

    enableAffectiveDialog boolean

    Optional. If enabled, the model will detect emotions and adapt its responses accordingly.

    JSON representation 
     { 
 "stopSequences" 
 : 
 [ 
 string 
 ] 
 , 
 "responseMimeType" 
 : 
 string 
 , 
 "responseModalities" 
 : 
 [ 
 enum (  Modality 
 
) 
 ] 
 , 
 "thinkingConfig" 
 : 
 { 
 object (  ThinkingConfig 
 
) 
 } 
 , 
 "modelConfig" 
 : 
 { 
 object (  ModelConfig 
 
) 
 } 
 , 
 "temperature" 
 : 
 number 
 , 
 "topP" 
 : 
 number 
 , 
 "topK" 
 : 
 number 
 , 
 "candidateCount" 
 : 
 integer 
 , 
 "maxOutputTokens" 
 : 
 integer 
 , 
 "responseLogprobs" 
 : 
 boolean 
 , 
 "logprobs" 
 : 
 integer 
 , 
 "presencePenalty" 
 : 
 number 
 , 
 "frequencyPenalty" 
 : 
 number 
 , 
 "seed" 
 : 
 integer 
 , 
 "responseSchema" 
 : 
 { 
 object (  Schema 
 
) 
 } 
 , 
 "responseJsonSchema" 
 : 
 value 
 , 
 "routingConfig" 
 : 
 { 
 object (  RoutingConfig 
 
) 
 } 
 , 
 "audioTimestamp" 
 : 
 boolean 
 , 
 "mediaResolution" 
 : 
 enum (  MediaResolution 
 
) 
 , 
 "speechConfig" 
 : 
 { 
 object (  SpeechConfig 
 
) 
 } 
 , 
 "enableAffectiveDialog" 
 : 
 boolean 
 }

    RoutingConfig

    The configuration for routing the request to a specific model.

    Fields
    routing_config Union type
    Routing mode. routing_config can be only one of the following:
    autoMode object ( AutoRoutingMode )

    Automated routing.

    manualMode object ( ManualRoutingMode )

    Manual routing.

    JSON representation 
     { 
 // routing_config 
 "autoMode" 
 : 
 { 
 object (  AutoRoutingMode 
 
) 
 } 
 , 
 "manualMode" 
 : 
 { 
 object (  ManualRoutingMode 
 
) 
 } 
 // Union type 
 }

    AutoRoutingMode

    When automated routing is specified, the routing will be determined by the pretrained routing model and customer provided model routing preference.

    Fields
    modelRoutingPreference enum ( ModelRoutingPreference )

    The model routing preference.

    JSON representation 
     { 
 "modelRoutingPreference" 
 : 
 enum (  ModelRoutingPreference 
 
) 
 }

    ModelRoutingPreference

    The model routing preference.

    Enums
    UNKNOWN Unspecified model routing preference.
    PRIORITIZE_QUALITY Prefer higher quality over low cost.
    BALANCED Balanced model routing preference.
    PRIORITIZE_COST Prefer lower cost over higher quality.

    ManualRoutingMode

    When manual routing is set, the specified model will be used directly.

    Fields
    modelName string

    The model name to use. Only the public LLM models are accepted. See Supported models .

    JSON representation 
     { 
 "modelName" 
 : 
 string 
 }

    Modality

    The modalities of the response.

    Enums
    MODALITY_UNSPECIFIED Unspecified modality. Will be processed as text.
    TEXT Text modality.
    IMAGE Image modality.
    AUDIO Audio modality.

    MediaResolution

    Media resolution for the input media.

    Enums
    MEDIA_RESOLUTION_UNSPECIFIED Media resolution has not been set.
    MEDIA_RESOLUTION_LOW Media resolution set to low (64 tokens).
    MEDIA_RESOLUTION_MEDIUM Media resolution set to medium (256 tokens).
    MEDIA_RESOLUTION_HIGH Media resolution set to high (zoomed reframing with 256 tokens).

    SpeechConfig

    The speech generation config.

    Fields
    voiceConfig object ( VoiceConfig )

    The configuration for the speaker to use.

    languageCode string

    Optional. Language code (ISO 639. e.g. en-US) for the speech synthesization.

    JSON representation 
     { 
 "voiceConfig" 
 : 
 { 
 object (  VoiceConfig 
 
) 
 } 
 , 
 "languageCode" 
 : 
 string 
 }

    VoiceConfig

    The configuration for the voice to use.

    Fields
    voice_config Union type
    The configuration for the speaker to use. voice_config can be only one of the following:
    prebuiltVoiceConfig object ( PrebuiltVoiceConfig )

    The configuration for the prebuilt voice to use.

    JSON representation 
     { 
 // voice_config 
 "prebuiltVoiceConfig" 
 : 
 { 
 object (  PrebuiltVoiceConfig 
 
) 
 } 
 // Union type 
 }

    PrebuiltVoiceConfig

    The configuration for the prebuilt speaker to use.

    Fields
    voiceName string

    The name of the preset voice to use.

    JSON representation 
     { 
 "voiceName" 
 : 
 string 
 }

    ThinkingConfig

    Config for thinking features.

    Fields
    includeThoughts boolean

    Optional. Indicates whether to include thoughts in the response. If true, thoughts are returned only when available.

    thinkingBudget integer

    Optional. Indicates the thinking budget in tokens.

    JSON representation 
     { 
 "includeThoughts" 
 : 
 boolean 
 , 
 "thinkingBudget" 
 : 
 integer 
 }

    ModelConfig

    Config for model selection.

    Fields
    featureSelectionPreference enum ( FeatureSelectionPreference )

    Required. feature selection preference.

    JSON representation 
     { 
 "featureSelectionPreference" 
 : 
 enum (  FeatureSelectionPreference 
 
) 
 }

    FeatureSelectionPreference

    Options for feature selection preference.

    Enums
    FEATURE_SELECTION_PREFERENCE_UNSPECIFIED Unspecified feature selection preference.
    PRIORITIZE_QUALITY Prefer higher quality over lower cost.
    BALANCED Balanced feature selection preference.
    PRIORITIZE_COST Prefer lower cost over higher quality.

    TuningMode

    Supported tuning modes.

    Enums
    TUNING_MODE_UNSPECIFIED Tuning mode is unspecified.
    TUNING_MODE_FULL Full fine-tuning mode.
    TUNING_MODE_PEFT_ADAPTER PEFT adapter tuning mode.

    DistillationSpec

    Tuning Spec for Distillation.

    Fields
    trainingDatasetUri
    (deprecated)     string

    Deprecated. Cloud Storage path to file containing training dataset for tuning. The dataset must be formatted as a JSONL file.

    hyperParameters object ( DistillationHyperParameters )

    Optional. Hyperparameters for Distillation.

    studentModel
    (deprecated)     string

    The student model that is being tuned, e.g., "google/gemma-2b-1.1-it". Deprecated. Use baseModel instead.

    pipelineRootDirectory
    (deprecated)     string

    Deprecated. A path in a Cloud Storage bucket, which will be treated as the root output directory of the distillation pipeline. It is used by the system to generate the paths of output artifacts.

    teacher_model Union type
    The teacher model that is being distilled from. See Supported models . teacher_model can be only one of the following:
    baseTeacherModel string

    The base teacher model that is being distilled. See Supported models .

    tunedTeacherModelSource string

    The resource name of the Tuned teacher model. Format: projects/{project}/locations/{location}/models/{model} .

    validationDatasetUri string

    Optional. Cloud Storage path to file containing validation dataset for tuning. The dataset must be formatted as a JSONL file.

    JSON representation 
     { 
 "trainingDatasetUri" 
 : 
 string 
 , 
 "hyperParameters" 
 : 
 { 
 object (  DistillationHyperParameters 
 
) 
 } 
 , 
 "studentModel" 
 : 
 string 
 , 
 "pipelineRootDirectory" 
 : 
 string 
 , 
 // teacher_model 
 "baseTeacherModel" 
 : 
 string 
 , 
 "tunedTeacherModelSource" 
 : 
 string 
 // Union type 
 "validationDatasetUri" 
 : 
 string 
 }

    DistillationHyperParameters

    Hyperparameters for Distillation.

    Fields
    adapterSize enum ( AdapterSize )

    Optional. Adapter size for distillation.

    epochCount string ( int64 format)

    Optional. Number of complete passes the model makes over the entire training dataset during training.

    learningRateMultiplier number

    Optional. Multiplier for adjusting the default learning rate.

    JSON representation 
     { 
 "adapterSize" 
 : 
 enum (  AdapterSize 
 
) 
 , 
 "epochCount" 
 : 
 string 
 , 
 "learningRateMultiplier" 
 : 
 number 
 }

    PartnerModelTuningSpec

    Tuning spec for Partner models.

    Fields
    trainingDatasetUri string

    Required. Cloud Storage path to file containing training dataset for tuning. The dataset must be formatted as a JSONL file.

    validationDatasetUri string

    Optional. Cloud Storage path to file containing validation dataset for tuning. The dataset must be formatted as a JSONL file.

    hyperParameters map (key: string, value: value ( Value format))

    Hyperparameters for tuning. The accepted hyperParameters and their valid range of values will differ depending on the base model.

    JSON representation 
     { 
 "trainingDatasetUri" 
 : 
 string 
 , 
 "validationDatasetUri" 
 : 
 string 
 , 
 "hyperParameters" 
 : 
 { 
 string 
 : 
 value 
 , 
 ... 
 } 
 }

    VeoTuningSpec

    Tuning Spec for Veo Model Tuning.

    Fields
    trainingDatasetUri string

    Required. Training dataset used for tuning. The dataset can be specified as either a Cloud Storage path to a JSONL file or as the resource name of a Vertex Multimodal Dataset.

    validationDatasetUri string

    Optional. Validation dataset used for tuning. The dataset can be specified as either a Cloud Storage path to a JSONL file or as the resource name of a Vertex Multimodal Dataset.

    hyperParameters object ( VeoHyperParameters )

    Optional. Hyperparameters for Veo.

    JSON representation 
     { 
 "trainingDatasetUri" 
 : 
 string 
 , 
 "validationDatasetUri" 
 : 
 string 
 , 
 "hyperParameters" 
 : 
 { 
 object (  VeoHyperParameters 
 
) 
 } 
 }

    VeoHyperParameters

    Hyperparameters for Veo.

    Fields
    epochCount string ( int64 format)

    Optional. Number of complete passes the model makes over the entire training dataset during training.

    learningRateMultiplier number

    Optional. Multiplier for adjusting the default learning rate.

    tuningTask enum ( TuningTask )

    Optional. The tuning task. Either I2V or T2V.

    JSON representation 
     { 
 "epochCount" 
 : 
 string 
 , 
 "learningRateMultiplier" 
 : 
 number 
 , 
 "tuningTask" 
 : 
 enum (  TuningTask 
 
) 
 }

    TuningTask

    An enum defining the tuning task used for Veo.

    Enums
    TUNING_TASK_UNSPECIFIED Default value. This value is unused.
    TUNING_TASK_I2V Tuning task for image to video.
    TUNING_TASK_T2V Tuning task for text to video.
    TUNING_TASK_R2V Tuning task for reference to video.

    TunedModel

    The Model Registry Model and Online Prediction Endpoint associated with this TuningJob .

    Fields
    model string

    Output only. The resource name of the TunedModel. Format:

    projects/{project}/locations/{location}/models/{model}@{versionId}

    When tuning from a base model, the version id will be 1.

    For continuous tuning, if the provided tunedModelDisplayName is set and different from parent model's display name, the tuned model will have a new parent model with version 1. Otherwise the version id will be incremented by 1 from the last version id in the parent model. E.g.,

    projects/{project}/locations/{location}/models/{model}@{last_version_id + 1}

    endpoint string

    Output only. A resource name of an Endpoint. Format: projects/{project}/locations/{location}/endpoints/{endpoint} .

    checkpoints[] object ( TunedModelCheckpoint )

    Output only. The checkpoints associated with this TunedModel. This field is only populated for tuning jobs that enable intermediate checkpoints.

    JSON representation 
     { 
 "model" 
 : 
 string 
 , 
 "endpoint" 
 : 
 string 
 , 
 "checkpoints" 
 : 
 [ 
 { 
 object (  TunedModelCheckpoint 
 
) 
 } 
 ] 
 }

    TunedModelCheckpoint

    TunedModelCheckpoint for the Tuned Model of a Tuning Job.

    Fields
    checkpointId string

    The id of the checkpoint.

    epoch string ( int64 format)

    The epoch of the checkpoint.

    step string ( int64 format)

    The step of the checkpoint.

    endpoint string

    The Endpoint resource name that the checkpoint is deployed to. Format: projects/{project}/locations/{location}/endpoints/{endpoint} .

    JSON representation 
     { 
 "checkpointId" 
 : 
 string 
 , 
 "epoch" 
 : 
 string 
 , 
 "step" 
 : 
 string 
 , 
 "endpoint" 
 : 
 string 
 }

    TuningDataStats

    The tuning data statistic values for TuningJob .

    Fields
    tuning_data_stats Union type
    tuning_data_stats can be only one of the following:
    supervisedTuningDataStats object ( SupervisedTuningDataStats )

    The SFT Tuning data stats.

    distillationDataStats object ( DistillationDataStats )

    Output only. Statistics for distillation.

    JSON representation 
     { 
 // tuning_data_stats 
 "supervisedTuningDataStats" 
 : 
 { 
 object (  SupervisedTuningDataStats 
 
) 
 } 
 , 
 "distillationDataStats" 
 : 
 { 
 object (  DistillationDataStats 
 
) 
 } 
 // Union type 
 }

    SupervisedTuningDataStats

    Tuning data statistics for Supervised Tuning.

    Fields
    tuningDatasetExampleCount string ( int64 format)

    Output only. Number of examples in the tuning dataset.

    totalTuningCharacterCount string ( int64 format)

    Output only. Number of tuning characters in the tuning dataset.

    totalBillableCharacterCount
    (deprecated)     string ( int64 format)

    Output only. Number of billable characters in the tuning dataset.

    totalBillableTokenCount string ( int64 format)

    Output only. Number of billable tokens in the tuning dataset.

    tuningStepCount string ( int64 format)

    Output only. Number of tuning steps for this Tuning Job.

    userInputTokenDistribution object ( SupervisedTuningDatasetDistribution )

    Output only. Dataset distributions for the user input tokens.

    userOutputTokenDistribution object ( SupervisedTuningDatasetDistribution )

    Output only. Dataset distributions for the user output tokens.

    userMessagePerExampleDistribution object ( SupervisedTuningDatasetDistribution )

    Output only. Dataset distributions for the messages per example.

    userDatasetExamples[] object ( Content )

    Output only. Sample user messages in the training dataset uri.

    totalTruncatedExampleCount string ( int64 format)

    Output only. The number of examples in the dataset that have been dropped. An example can be dropped for reasons including: too many tokens, contains an invalid image, contains too many images, etc.

    truncatedExampleIndices[] string ( int64 format)

    Output only. A partial sample of the indices (starting from 1) of the dropped examples.

    droppedExampleReasons[] string

    Output only. For each index in truncatedExampleIndices , the user-facing reason why the example was dropped.

    JSON representation 
     { 
 "tuningDatasetExampleCount" 
 : 
 string 
 , 
 "totalTuningCharacterCount" 
 : 
 string 
 , 
 "totalBillableCharacterCount" 
 : 
 string 
 , 
 "totalBillableTokenCount" 
 : 
 string 
 , 
 "tuningStepCount" 
 : 
 string 
 , 
 "userInputTokenDistribution" 
 : 
 { 
 object (  SupervisedTuningDatasetDistribution 
 
) 
 } 
 , 
 "userOutputTokenDistribution" 
 : 
 { 
 object (  SupervisedTuningDatasetDistribution 
 
) 
 } 
 , 
 "userMessagePerExampleDistribution" 
 : 
 { 
 object (  SupervisedTuningDatasetDistribution 
 
) 
 } 
 , 
 "userDatasetExamples" 
 : 
 [ 
 { 
 object (  Content 
 
) 
 } 
 ] 
 , 
 "totalTruncatedExampleCount" 
 : 
 string 
 , 
 "truncatedExampleIndices" 
 : 
 [ 
 string 
 ] 
 , 
 "droppedExampleReasons" 
 : 
 [ 
 string 
 ] 
 }

    SupervisedTuningDatasetDistribution

    Dataset distribution for Supervised Tuning.

    Fields
    sum string ( int64 format)

    Output only. Sum of a given population of values.

    billableSum string ( int64 format)

    Output only. Sum of a given population of values that are billable.

    min number

    Output only. The minimum of the population values.

    max number

    Output only. The maximum of the population values.

    mean number

    Output only. The arithmetic mean of the values in the population.

    median number

    Output only. The median of the values in the population.

    p5 number

    Output only. The 5th percentile of the values in the population.

    p95 number

    Output only. The 95th percentile of the values in the population.

    buckets[] object ( DatasetBucket )

    Output only. Defines the histogram bucket.

    JSON representation 
     { 
 "sum" 
 : 
 string 
 , 
 "billableSum" 
 : 
 string 
 , 
 "min" 
 : 
 number 
 , 
 "max" 
 : 
 number 
 , 
 "mean" 
 : 
 number 
 , 
 "median" 
 : 
 number 
 , 
 "p5" 
 : 
 number 
 , 
 "p95" 
 : 
 number 
 , 
 "buckets" 
 : 
 [ 
 { 
 object (  DatasetBucket 
 
) 
 } 
 ] 
 }

    DatasetBucket

    Dataset bucket used to create a histogram for the distribution given a population of values.

    Fields
    count number

    Output only. Number of values in the bucket.

    left number

    Output only. left bound of the bucket.

    right number

    Output only. Right bound of the bucket.

    JSON representation 
     { 
 "count" 
 : 
 number 
 , 
 "left" 
 : 
 number 
 , 
 "right" 
 : 
 number 
 }

    DistillationDataStats

    Statistics computed for datasets used for distillation.

    Fields
    trainingDatasetStats object ( DatasetStats )

    Output only. Statistics computed for the training dataset.

    JSON representation 
     { 
 "trainingDatasetStats" 
 : 
 { 
 object (  DatasetStats 
 
) 
 } 
 }

    DatasetStats

    Statistics computed over a tuning dataset.

    Fields
    tuningDatasetExampleCount string ( int64 format)

    Output only. Number of examples in the tuning dataset.

    totalTuningCharacterCount string ( int64 format)

    Output only. Number of tuning characters in the tuning dataset.

    totalBillableCharacterCount string ( int64 format)

    Output only. Number of billable characters in the tuning dataset.

    tuningStepCount string ( int64 format)

    Output only. Number of tuning steps for this Tuning Job.

    userInputTokenDistribution object ( DatasetDistribution )

    Output only. Dataset distributions for the user input tokens.

    userMessagePerExampleDistribution object ( DatasetDistribution )

    Output only. Dataset distributions for the messages per example.

    userDatasetExamples[] object ( Content )

    Output only. Sample user messages in the training dataset uri.

    droppedExampleIndices[] string ( int64 format)

    Output only. A partial sample of the indices (starting from 1) of the dropped examples.

    droppedExampleReasons[] string

    Output only. For each index in droppedExampleIndices , the user-facing reason why the example was dropped.

    userOutputTokenDistribution object ( DatasetDistribution )

    Output only. Dataset distributions for the user output tokens.

    JSON representation 
     { 
 "tuningDatasetExampleCount" 
 : 
 string 
 , 
 "totalTuningCharacterCount" 
 : 
 string 
 , 
 "totalBillableCharacterCount" 
 : 
 string 
 , 
 "tuningStepCount" 
 : 
 string 
 , 
 "userInputTokenDistribution" 
 : 
 { 
 object (  DatasetDistribution 
 
) 
 } 
 , 
 "userMessagePerExampleDistribution" 
 : 
 { 
 object (  DatasetDistribution 
 
) 
 } 
 , 
 "userDatasetExamples" 
 : 
 [ 
 { 
 object (  Content 
 
) 
 } 
 ] 
 , 
 "droppedExampleIndices" 
 : 
 [ 
 string 
 ] 
 , 
 "droppedExampleReasons" 
 : 
 [ 
 string 
 ] 
 , 
 "userOutputTokenDistribution" 
 : 
 { 
 object (  DatasetDistribution 
 
) 
 } 
 }

    DatasetDistribution

    Distribution computed over a tuning dataset.

    Fields
    sum number

    Output only. Sum of a given population of values.

    min number

    Output only. The minimum of the population values.

    max number

    Output only. The maximum of the population values.

    mean number

    Output only. The arithmetic mean of the values in the population.

    median number

    Output only. The median of the values in the population.

    p5 number

    Output only. The 5th percentile of the values in the population.

    p95 number

    Output only. The 95th percentile of the values in the population.

    buckets[] object ( DistributionBucket )

    Output only. Defines the histogram bucket.

    JSON representation 
     { 
 "sum" 
 : 
 number 
 , 
 "min" 
 : 
 number 
 , 
 "max" 
 : 
 number 
 , 
 "mean" 
 : 
 number 
 , 
 "median" 
 : 
 number 
 , 
 "p5" 
 : 
 number 
 , 
 "p95" 
 : 
 number 
 , 
 "buckets" 
 : 
 [ 
 { 
 object (  DistributionBucket 
 
) 
 } 
 ] 
 }

    DistributionBucket

    Dataset bucket used to create a histogram for the distribution given a population of values.

    Fields
    count string ( int64 format)

    Output only. Number of values in the bucket.

    left number

    Output only. left bound of the bucket.

    right number

    Output only. Right bound of the bucket.

    JSON representation 
     { 
 "count" 
 : 
 string 
 , 
 "left" 
 : 
 number 
 , 
 "right" 
 : 
 number 
 }

    EvaluateDatasetRun

    Evaluate Dataset Run result for Tuning Job.

    Fields
    operationName string

    Output only. The operation id of the evaluation run. Format: projects/{project}/locations/{location}/operations/{operationId} .

    checkpointId string

    Output only. The checkpoint id used in the evaluation run. Only populated when evaluating checkpoints.

    evaluateDatasetResponse object ( EvaluateDatasetResponse )

    Output only. Results for EvaluationService.EvaluateDataset.

    error object ( Status )

    Output only. The error of the evaluation run if any.

    JSON representation 
     { 
 "operationName" 
 : 
 string 
 , 
 "checkpointId" 
 : 
 string 
 , 
 "evaluateDatasetResponse" 
 : 
 { 
 object (  EvaluateDatasetResponse 
 
) 
 } 
 , 
 "error" 
 : 
 { 
 object (  Status 
 
) 
 } 
 }

    EvaluateDatasetResponse

    Response in LRO for EvaluationService.EvaluateDataset.

    Fields
    aggregationOutput object ( AggregationOutput )

    Output only. Aggregation statistics derived from results of EvaluationService.EvaluateDataset.

    outputInfo object ( OutputInfo )

    Output only. Output info for EvaluationService.EvaluateDataset.

    JSON representation 
     { 
 "aggregationOutput" 
 : 
 { 
 object (  AggregationOutput 
 
) 
 } 
 , 
 "outputInfo" 
 : 
 { 
 object (  OutputInfo 
 
) 
 } 
 }

    AggregationOutput

    The aggregation result for the entire dataset and all metrics.

    Fields
    dataset object ( EvaluationDataset )

    The dataset used for evaluation & aggregation.

    aggregationResults[] object ( AggregationResult )

    One AggregationResult per metric.

    JSON representation 
     { 
 "dataset" 
 : 
 { 
 object (  EvaluationDataset 
 
) 
 } 
 , 
 "aggregationResults" 
 : 
 [ 
 { 
 object (  AggregationResult 
 
) 
 } 
 ] 
 }

    EvaluationDataset

    The dataset used for evaluation.

    Fields
    source Union type
    The source of the dataset. source can be only one of the following:
    gcsSource object ( GcsSource )

    Cloud storage source holds the dataset. Currently only one Cloud Storage file path is supported.

    bigquerySource object ( BigQuerySource )

    BigQuery source holds the dataset.

    JSON representation 
     { 
 // source 
 "gcsSource" 
 : 
 { 
 object (  GcsSource 
 
) 
 } 
 , 
 "bigquerySource" 
 : 
 { 
 object (  BigQuerySource 
 
) 
 } 
 // Union type 
 }

    AggregationResult

    The aggregation result for a single metric.

    Fields
    aggregationMetric enum ( AggregationMetric )

    Aggregation metric.

    aggregation_result Union type
    The aggregation result. aggregation_result can be only one of the following:
    pointwiseMetricResult object ( PointwiseMetricResult )

    result for pointwise metric.

    pairwiseMetricResult object ( PairwiseMetricResult )

    result for pairwise metric.

    exactMatchMetricValue object ( ExactMatchMetricValue )

    Results for exact match metric.

    bleuMetricValue object ( BleuMetricValue )

    Results for bleu metric.

    rougeMetricValue object ( RougeMetricValue )

    Results for rouge metric.

    JSON representation 
     { 
 "aggregationMetric" 
 : 
 enum (  AggregationMetric 
 
) 
 , 
 // aggregation_result 
 "pointwiseMetricResult" 
 : 
 { 
 object (  PointwiseMetricResult 
 
) 
 } 
 , 
 "pairwiseMetricResult" 
 : 
 { 
 object (  PairwiseMetricResult 
 
) 
 } 
 , 
 "exactMatchMetricValue" 
 : 
 { 
 object (  ExactMatchMetricValue 
 
) 
 } 
 , 
 "bleuMetricValue" 
 : 
 { 
 object (  BleuMetricValue 
 
) 
 } 
 , 
 "rougeMetricValue" 
 : 
 { 
 object (  RougeMetricValue 
 
) 
 } 
 // Union type 
 }

    PointwiseMetricResult

    Spec for pointwise metric result.

    Fields
    explanation string

    Output only. Explanation for pointwise metric score.

    customOutput object ( CustomOutput )

    Output only. Spec for custom output.

    score number

    Output only. Pointwise metric score.

    JSON representation 
     { 
 "explanation" 
 : 
 string 
 , 
 "customOutput" 
 : 
 { 
 object (  CustomOutput 
 
) 
 } 
 , 
 "score" 
 : 
 number 
 }

    CustomOutput

    Spec for custom output.

    Fields
    custom_output Union type
    Custom output. custom_output can be only one of the following:
    rawOutputs object ( RawOutput )

    Output only. List of raw output strings.

    JSON representation 
     { 
 // custom_output 
 "rawOutputs" 
 : 
 { 
 object (  RawOutput 
 
) 
 } 
 // Union type 
 }

    RawOutput

    Raw output.

    Fields
    rawOutput[] string

    Output only. Raw output string.

    JSON representation 
     { 
 "rawOutput" 
 : 
 [ 
 string 
 ] 
 }

    PairwiseMetricResult

    Spec for pairwise metric result.

    Fields
    pairwiseChoice enum ( PairwiseChoice )

    Output only. Pairwise metric choice.

    explanation string

    Output only. Explanation for pairwise metric score.

    customOutput object ( CustomOutput )

    Output only. Spec for custom output.

    JSON representation 
     { 
 "pairwiseChoice" 
 : 
 enum (  PairwiseChoice 
 
) 
 , 
 "explanation" 
 : 
 string 
 , 
 "customOutput" 
 : 
 { 
 object (  CustomOutput 
 
) 
 } 
 }

    PairwiseChoice

    Pairwise prediction autorater preference.

    Enums
    PAIRWISE_CHOICE_UNSPECIFIED Unspecified prediction choice.
    BASELINE baseline prediction wins
    CANDIDATE Candidate prediction wins
    TIE Winner cannot be determined

    ExactMatchMetricValue

    Exact match metric value for an instance.

    Fields
    score number

    Output only. Exact match score.

    JSON representation 
     { 
 "score" 
 : 
 number 
 }

    BleuMetricValue

    Bleu metric value for an instance.

    Fields
    score number

    Output only. Bleu score.

    JSON representation 
     { 
 "score" 
 : 
 number 
 }

    RougeMetricValue

    Rouge metric value for an instance.

    Fields
    score number

    Output only. Rouge score.

    JSON representation 
     { 
 "score" 
 : 
 number 
 }

    OutputInfo

    Describes the info for output of EvaluationService.EvaluateDataset.

    Fields
    output_location Union type
    The output location into which evaluation output is written. output_location can be only one of the following:
    gcsOutputDirectory string

    Output only. The full path of the Cloud Storage directory created, into which the evaluation results and aggregation results are written.

    JSON representation 
     { 
 // output_location 
 "gcsOutputDirectory" 
 : 
 string 
 // Union type 
 }

    Methods

    cancel

    		Cancels a TuningJob.

    create

    		Creates a TuningJob.

    get

    		Gets a TuningJob.

    list

    		Lists TuningJobs in a Location.

    rebaseTunedModel

    		Rebase a TunedModel.
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