aws-cdk.aws-bedrock-alpha

Create a Python-based application that leverages the AWS CDK and the 'aws-cdk.aws-bedrock-alpha' package to deploy and manage Amazon Bedrock resources within an AWS environment. Your task is to develop a small, but fully functional, utility that automates the process of setting up and configuring a basic Bedrock instance for text-to-speech synthesis. This utility will allow users to define and customize various aspects of their Bedrock deployment, such as specifying the model to use for text-to-speech conversion, setting up necessary IAM roles for access control, and deploying the infrastructure required for the service.

Your application should include the following features:
1. Define a construct that provisions an Amazon Bedrock instance with a specified model for text-to-synthesis tasks.
2. Implement a mechanism for specifying IAM roles and policies to secure access to the Bedrock resources.
3. Allow users to input text and receive audio files as output through the Bedrock service.
4. Provide a simple command-line interface (CLI) for interacting with the deployed Bedrock resources, including starting, stopping, and querying the status of the text-to-speech tasks.
5. Ensure that all AWS resources are properly cleaned up when the application is terminated.

Utilize the 'aws-cdk.aws-bedrock-alpha' package to interact with the Bedrock API and manage the underlying AWS resources efficiently. Additionally, your project should demonstrate best practices in cloud resource management, such as using environment variables for sensitive information and implementing CI/CD pipelines for automated deployments.