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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 validate(schema):
 """Validate that a supposed schema is in fact a Table Schema."""

    try:
        tableschema.validate(schema)
        click.echo("Schema is valid")
        sys.exit(0)
    except tableschema.exceptions.ValidationError as exception:
        click.echo("Schema is not valid")
        click.echo(exception.errors)
        sys.exit(1)