help='Resource Listing Spec File')
parser.add_argument('-au', '--api-declaration-url',
type=str,
required=False,
help='Resource Listing Spec File')
parser.add_argument('-au', '--api-declaration-url',
type=str,
required=False,
help='API Declaration Spec File')
parser.add_argument('-o', '--output-directory',
required=True,
help='API Declaration Spec File')
parser.add_argument('-o', '--output-directory',
required=True,