def delete_ca_certificate(certificateId=None):
    """
    Deletes a registered CA certificate.
    See also: AWS API Documentation
    
    
    :example: response = client.delete_ca_certificate(
        certificateId='string'
    )
    
    
    :type certificateId: string
    :param certificateId: [REQUIRED]
            The ID of the certificate to delete.
            

    :rtype: dict
    :return: {}
    
    
    """
    pass
