[[["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 2025-08-07 UTC."],[],[],null,["# Module chat_message_history (0.3.0)\n\nVersion latestkeyboard_arrow_down\n\n- [0.3.0 (latest)](/python/docs/reference/langchain-google-cloud-sql-mysql/latest/langchain_google_cloud_sql_mysql.chat_message_history)\n- [0.2.3](/python/docs/reference/langchain-google-cloud-sql-mysql/0.2.3/langchain_google_cloud_sql_mysql.chat_message_history) \nAPI documentation for `chat_message_history` module.\n\nClasses\n-------\n\n### [MySQLChatMessageHistory](/python/docs/reference/langchain-google-cloud-sql-mysql/latest/langchain_google_cloud_sql_mysql.chat_message_history.MySQLChatMessageHistory)\n\n MySQLChatMessageHistory(\n engine: langchain_google_cloud_sql_mysql.engine.MySQLEngine,\n session_id: str,\n table_name: str,\n )\n\nChat message history stored in a Cloud SQL MySQL database."]]