code: def _get_specification(self, specification):
          
          result = six.moves.urllib.parse.urlparse(specification)
  
          # If the specification has an http or an https scheme we can
          # retrieve it via an HTTP get request, else we try to open it
          # as a file.
          if result.scheme in ['http', 'https']:
              response = requests.get(specification)
              spec_json = response.json()
          else:
              with open(specification, 'r') as spec_file:
                  spec_json = json.load(spec_file)
  
          return spec_json
docs: Read the specification provided. It can either be a url or a file
          location.