docs: def get_environments(self, project_key: str) -> dict:
          """
          Retrieve all environments for a given project.
  
          Includes name, key, and mobile key.
  
          :param project_key: Key for project.
  
          :returns: dictionary of environments.
          """
          try:
              resp = self.client.get_project(project_key)
          except launchdarkly_api.rest.ApiException as ex:
              msg = "Unable to get environments."
              resp = "API response was {0} {1}.".format(ex.status, ex.reason)
              LOG.error("%s %s", msg, resp)
              sys.exit(1)
  
          envs = []
  
          for env in resp.environments:
              env = dict(
                  key=env.key,
                  api_key=env.api_key,
                  client_id=env.id
              )
              envs.append(env)
  
          return envs