[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-04 UTC."],[],[],null,["Version 0.3.1keyboard_arrow_down\n\n- [0.8.0 (latest)](/python/docs/reference/langchain-google-bigtable/latest/summary_class)\n- [0.7.0](/python/docs/reference/langchain-google-bigtable/0.7.0/summary_class)\n- [0.6.0](/python/docs/reference/langchain-google-bigtable/0.6.0/summary_class)\n- [0.5.0](/python/docs/reference/langchain-google-bigtable/0.5.0/summary_class)\n- [0.4.4](/python/docs/reference/langchain-google-bigtable/0.4.4/summary_class)\n- [0.3.1](/python/docs/reference/langchain-google-bigtable/0.3.1/summary_class)\n- [0.2.3](/python/docs/reference/langchain-google-bigtable/0.2.3/summary_class) \nSummary of entries of Classes for langchain-google-bigtable. \n\nClasses\n\n[BigtableChatMessageHistory](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory) Chat message history that stores history in Bigtable.\n\n[BigtableLoader](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.loader.BigtableLoader) Load from the Google Cloud Platform `Bigtable`.\n\n[BigtableSaver](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.loader.BigtableSaver) Load from the Google Cloud Platform `Bigtable`.\n\n[Encoding](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.loader.Encoding) An enumeration.\n\n[MetadataMapping](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.loader.MetadataMapping) MetadataMapping(column_family: 'str', column_name: 'str', metadata_key: 'str', encoding: 'Encoding', custom_encoding_func: 'Callable\\[\\[Any\\], bytes\\]' = \\\u003cfunction MetadataMapping.__not_implemented at 0x7f6957559510\\\u003e, custom_decoding_func: 'Callable\\[\\[bytes\\], Any\\]' = \\\u003cfunction MetadataMapping.__not_implemented at 0x7f6957559510\\\u003e)\n\nModules\n\n[chat_message_history](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.chat_message_history) Bigtable-based chat message history\n\n[loader](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.loader) API documentation for `loader` module."]]