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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def initialize_app(flask_app, args):
 """Initialize the App."""

    # Setup gourde with the args.
    gourde.setup(args)

    # Register a custom health check.
    gourde.is_healthy = is_healthy

    # Add an optional API
    initialize_api(flask_app)