code: def build_url(self):
          
          url = '{protocol}/{url}/{rest}/{version}/{restapi}/{rscpath}/' \
                '{query}'.format(protocol=self.schema.protocol,
                                 url=self.schema.main_url,
                                 rest=self.schema.rest,
                                 version=self.schema.version,
                                 restapi=self.schema.restApi,
                                 rscpath=self.schema.resourcePath,
                                 query=self.schema.query)
          return url.replace('/None/', '/')
docs: Builds the URL for elevations API services based on the data given
          by the user.
  
          Returns:
              url (str): URL for the elevations API services