[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-29 UTC."],[],[],null,["# Module chat_message_history (0.6.0)\n\nVersion latestkeyboard_arrow_down\n\n- [0.6.0 (latest)](/python/docs/reference/langchain-google-bigtable/latest/langchain_google_bigtable.chat_message_history)\n- [0.5.0](/python/docs/reference/langchain-google-bigtable/0.5.0/langchain_google_bigtable.chat_message_history)\n- [0.4.4](/python/docs/reference/langchain-google-bigtable/0.4.4/langchain_google_bigtable.chat_message_history)\n- [0.3.1](/python/docs/reference/langchain-google-bigtable/0.3.1/langchain_google_bigtable.chat_message_history)\n- [0.2.3](/python/docs/reference/langchain-google-bigtable/0.2.3/langchain_google_bigtable.chat_message_history) \nBigtable-based chat message history\n\nClasses\n-------\n\n### [BigtableChatMessageHistory](/python/docs/reference/langchain-google-bigtable/latest/langchain_google_bigtable.chat_message_history.BigtableChatMessageHistory)\n\n BigtableChatMessageHistory(\n instance_id: str,\n table_id: str,\n session_id: str,\n client: typing.Optional[google.cloud.bigtable.client.Client] = None,\n )\n\nChat message history that stores history in Bigtable.\n\nModules\nFunctions\n-----------------\n\n### init_chat_history_table\n\n init_chat_history_table(\n instance_id: str,\n table_id: str,\n client: typing.Optional[google.cloud.bigtable.client.Client] = None,\n ) -\u003e None\n\nCreate a table to store chat history."]]