{"library":"mypy-boto3-lex-runtime","title":"mypy-boto3-lex-runtime Type Stubs","description":"mypy-boto3-lex-runtime provides high-quality type annotations for the boto3 LexRuntimeService. Currently at version 1.42.3, this library is part of the larger mypy-boto3 project, which automatically generates stubs for all AWS services. It's updated frequently, typically aligning with new boto3 releases and enhancements in the mypy-boto3-builder.","language":"python","status":"active","last_verified":"Thu May 14","install":{"commands":["pip install mypy-boto3-lex-runtime","pip install boto3 mypy"],"cli":null},"imports":["from mypy_boto3_lex_runtime.client import LexRuntimeServiceClient","from mypy_boto3_lex_runtime.type_defs import PostTextRequestRequestTypeDef","from mypy_boto3_lex_runtime.type_defs import PostTextResponseTypeDef","import boto3\n# For type-checking, assign to a type-hinted variable:\nclient: LexRuntimeServiceClient = boto3.client(\"lex-runtime\")"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import os\nimport boto3\nfrom typing import TYPE_CHECKING\n\n# Import specific types only when type checking using TYPE_CHECKING guard\nif TYPE_CHECKING:\n    from mypy_boto3_lex_runtime.client import LexRuntimeServiceClient\n    from mypy_boto3_lex_runtime.type_defs import PostTextRequestRequestTypeDef, PostTextResponseTypeDef\n\n# Configure AWS credentials (for demonstration, use environment variables or default config)\n# In a real application, consider using AWS IAM roles or standard AWS configuration.\naws_access_key_id = os.environ.get(\"AWS_ACCESS_KEY_ID\", \"MOCK_ACCESS_KEY\")\naws_secret_access_key = os.environ.get(\"AWS_SECRET_ACCESS_KEY\", \"MOCK_SECRET_KEY\")\naws_region = os.environ.get(\"AWS_REGION\", \"us-east-1\")\n\n# Initialize the Lex Runtime client with type annotation.\n# The '\"LexRuntimeServiceClient\"' uses a string forward reference, common with TYPE_CHECKING.\nclient: \"LexRuntimeServiceClient\" = boto3.client(\n    \"lex-runtime\",\n    region_name=aws_region,\n    aws_access_key_id=aws_access_key_id,\n    aws_secret_access_key=aws_secret_access_key,\n)\n\n# Define request parameters using TypedDicts for type safety. \n# Replace 'YourLexBotName' with your actual Amazon Lex bot's name.\nrequest_params: \"PostTextRequestRequestTypeDef\" = {\n    \"botName\": \"YourLexBotName\", \n    \"botAlias\": \"$LATEST\",       \n    \"userId\": \"testuser123\",\n    \"inputText\": \"Hello, what is your name?\",\n}\n\n# Call a client method; mypy will check arguments and return type\nresponse: \"PostTextResponseTypeDef\" = client.post_text(**request_params)\n\nprint(f\"Lex Runtime PostText Response: {response}\")\n\n# Access typed fields from the response\nmessage_content = response.get(\"message\")\nprint(f\"Bot's message: {message_content}\")\n","lang":"python","description":"This quickstart demonstrates how to initialize a `boto3` Lex Runtime client and make a `post_text` call with `mypy-boto3-lex-runtime` type annotations. 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