code: def environment_context_path(cls, project, environment, user, session,
                                   context):
          
          return google.api_core.path_template.expand(
              'projects/{project}/agent/environments/{environment}/users/{user}/sessions/{session}/contexts/{context}',
              project=project,
              environment=environment,
              user=user,
              session=session,
              context=context,
          )
docs: Return a fully-qualified environment_context string.