mypy-boto3-polly

import boto3 from mypy_boto3_polly.client import PollyClient from mypy_boto3_polly.type_defs import SynthesizeSpeechOutputTypeDef import os def synthesize_and_save(text: str, output_path: str): # Ensure AWS credentials are available (e.g., via environment variables or ~/.aws/credentials) # For local testing, ensure AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_REGION are set. # Explicitly type the client for full type-checking benefits client: PollyClient = boto3.client("polly", region_name=os.environ.get('AWS_REGION', 'us-east-1')) response: SynthesizeSpeechOutputTypeDef = client.synthesize_speech( Text=text, OutputFormat='mp3', VoiceId='Joanna' ) # In a real application, handle the 'AudioStream' which is a StreamingBody # For this quickstart, we'll just demonstrate the typing of the response. if response['AudioStream']: print(f"Successfully received audio stream with content type: {response['ContentType']}") # Example: to save to a file (simplified, error handling omitted) # with open(output_path, 'wb') as f: # f.write(response['AudioStream'].read()) # print(f"Audio saved to {output_path}") else: print("No audio stream received.") # Example usage (requires AWS setup for actual execution) # synthesize_and_save("Hello, world! This is a typed Polly client example.", "output.mp3") print("Quickstart code demonstrates type hinting for boto3 Polly client.")