class_docstr: Facade for Amazon Verified Permissions.
  
  Used as an intermediate layer between AWS auth manager and Amazon Verified Permissions.
class_docstr_tok: ["Facade","for","Amazon","Verified","Permissions",".","Used","as","an","intermediate","layer","between","AWS","auth","manager","and","Amazon","Verified","Permissions","."]
code: def _build_context(context: dict | None) -> dict | None:
      if context is None or len(context) == 0:
          return None
  
      return {
          "contextMap": context,
      }
  
file_path: airflow/airflow/providers/amazon/aws/auth_manager/avp/facade.py
imports: from __future__ import annotations
  from functools import cached_property
  from typing import TYPE_CHECKING
  from airflow.configuration import conf
  from airflow.exceptions import AirflowException
  from airflow.providers.amazon.aws.auth_manager.avp.entities import AvpEntities, get_action_id, get_entity_type
  from airflow.providers.amazon.aws.auth_manager.constants import CONF_AVP_POLICY_STORE_ID_KEY, CONF_CONN_ID_KEY, CONF_REGION_NAME_KEY, CONF_SECTION_NAME
  from airflow.providers.amazon.aws.hooks.verified_permissions import VerifiedPermissionsHook
  from airflow.utils.helpers import prune_dict
  from airflow.utils.log.logging_mixin import LoggingMixin
label_desc: Use image node_id 5 for calling the AwsAuthManagerAmazonVerifiedPermissionsFacade obj's underlying member method code with example usage: obj._build_context(context) and returns: dict, None