Summary of entries of Methods for langchain-google-bigtable.
langchain_google_bigtable.chat_message_history.init_chat_history_table
init_chat_history_table
(
instance_id
:
str
,
table_id
:
str
,
client
:
typing
.
Optional
[
google
.
cloud
.
bigtable
.
client
.
Client
]
=
None
,
)
-
> None
Create a table to store chat history.
See more: langchain_google_bigtable.chat_message_history.init_chat_history_table
langchain_google_bigtable.loader.init_document_table
init_document_table
(
instance_id
:
str
,
table_id
:
str
,
client
:
typing
.
Optional
[
google
.
cloud
.
bigtable
.
client
.
Client
]
=
None
,
content_column_family
:
str
=
"langchain"
,
metadata_mappings
:
typing
.
List
[
langchain_google_bigtable
.
loader
.
MetadataMapping
]
=
[],
metadata_as_json_column_family
:
typing
.
Optional
[
str
]
=
None
,
)
-
> None
Create a table for saving of langchain documents.
See more: langchain_google_bigtable.loader.init_document_table
langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory.add_message
add_message
(
message
:
langchain_core
.
messages
.
base
.
BaseMessage
)
-
> None
Write a message to the table.
See more: langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory.add_message
langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory.add_messages
add_messages
(
messages
:
typing
.
Sequence
[
langchain_core
.
messages
.
base
.
BaseMessage
],
)
-
> None
Write messages to the table.
See more: langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory.add_messages
langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory.clear
clear
()
-
> None
Clear session memory from DB.
See more: langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory.clear
langchain_google_bigtable.loader.BigtableLoader
BigtableLoader
(
instance_id
:
str
,
table_id
:
str
,
row_set
:
typing
.
Optional
[
google
.
cloud
.
bigtable
.
row_set
.
RowSet
]
=
None
,
filter
:
typing
.
Optional
[
google
.
cloud
.
bigtable
.
row_filters
.
RowFilter
]
=
None
,
client
:
typing
.
Optional
[
google
.
cloud
.
bigtable
.
client
.
Client
]
=
None
,
content_encoding
:
langchain_google_bigtable
.
loader
.
Encoding
=
Encoding
.
UTF8
,
content_column_family
:
str
=
"langchain"
,
content_column_name
:
str
=
"content"
,
metadata_mappings
:
typing
.
List
[
langchain_google_bigtable
.
loader
.
MetadataMapping
]
=
[],
metadata_as_json_column_family
:
typing
.
Optional
[
str
]
=
None
,
metadata_as_json_column_name
:
typing
.
Optional
[
str
]
=
None
,
metadata_as_json_encoding
:
langchain_google_bigtable
.
loader
.
Encoding
=
Encoding
.
UTF8
,
)
Initialize Bigtable document loader.
langchain_google_bigtable.loader.BigtableLoader.lazy_load
lazy_load
()
-
> typing
.
Iterator
[
langchain_core
.
documents
.
base
.
Document
]
A lazy loader for Documents.
See more: langchain_google_bigtable.loader.BigtableLoader.lazy_load
langchain_google_bigtable.loader.BigtableLoader.load
load
()
-
> typing
.
List
[
langchain_core
.
documents
.
base
.
Document
]
Load data into Document objects.
See more: langchain_google_bigtable.loader.BigtableLoader.load
langchain_google_bigtable.loader.BigtableSaver
BigtableSaver
(
instance_id
:
str
,
table_id
:
str
,
client
:
typing
.
Optional
[
google
.
cloud
.
bigtable
.
client
.
Client
]
=
None
,
content_encoding
:
langchain_google_bigtable
.
loader
.
Encoding
=
Encoding
.
UTF8
,
content_column_family
:
str
=
"langchain"
,
content_column_name
:
str
=
"content"
,
metadata_mappings
:
typing
.
List
[
langchain_google_bigtable
.
loader
.
MetadataMapping
]
=
[],
metadata_as_json_column_family
:
typing
.
Optional
[
str
]
=
None
,
metadata_as_json_column_name
:
typing
.
Optional
[
str
]
=
None
,
metadata_as_json_encoding
:
langchain_google_bigtable
.
loader
.
Encoding
=
Encoding
.
UTF8
,
)
Initialize Bigtable document saver.
langchain_google_bigtable.loader.BigtableSaver.add_documents
add_documents
(
docs
:
typing
.
List
[
langchain_core
.
documents
.
base
.
Document
])
-
> None
Save documents in the DocumentSaver table.
See more: langchain_google_bigtable.loader.BigtableSaver.add_documents
langchain_google_bigtable.loader.BigtableSaver.delete
delete
(
docs
:
typing
.
List
[
langchain_core
.
documents
.
base
.
Document
])
-
> None
Delete all instances of a document from the DocumentSaver table by matching the entire Document object.
See more: langchain_google_bigtable.loader.BigtableSaver.delete
