def delete_access_key(self, access_key_id, user_name=None):
        params = {'AccessKeyId' : access_key_id}
        if user_name:
            params['UserName'] = user_name
        return self.get_response('DeleteAccessKey', params)

    #
    # Signing Certificates
    #
Delete an access key associated with a user.
dataset/ETHPy150Open darcyliu/storyboard/boto/iam/connection.py/IAMConnection.delete_access_key