def get_policy(policyName=None):
    """
    Gets information about the specified policy with the policy document of the default version.
    See also: AWS API Documentation
    
    
    :example: response = client.get_policy(
        policyName='string'
    )
    
    
    :type policyName: string
    :param policyName: [REQUIRED]
            The name of the policy.
            

    :rtype: dict
    :return: {
        'policyName': 'string',
        'policyArn': 'string',
        'policyDocument': 'string',
        'defaultVersionId': 'string'
    }
    
    
    """
    pass
