WSDLis an XML notation for describing a web service.
Explanation: A WSDL definition tells a client how to compose a web service request and describes the interface that is provided by the web service provider.
WSDL: depicts structure of a web service (for user) + describes a web interface from a web provider.
dockeractivate docker container utility in the specific path:
docker run --rm -v `pwd`:/data cfn-python-lint:latest /data/template.yaml