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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 service_delete(service_id=None, name=None, profile=None, **connection_args):
    '''
    Delete a service from Keystone service catalog

    CLI Examples:

    .. code-block:: bash

        salt '*' keystone.service_delete c965f79c4f864eaaa9c3b41904e67082
        salt '*' keystone.service_delete name=nova
    '''
    kstone = auth(profile, **connection_args)
    if name:
        service_id = service_get(name=name, profile=profile,
                                 **connection_args)[name]['id']
    kstone.services.delete(service_id)
    return 'Keystone service ID "{0}" deleted'.format(service_id)