code: def add_authorization_policy(access_token, ck_id, oid):
      '''Add Media Service Authorization Policy.
  
      Args:
          access_token (str): A valid Azure authentication token.
          ck_id (str): A Media Service Asset Content Key ID.
          options_id (str): A Media Service OID.
  
      Returns:
          HTTP response. JSON body.
      '''
      path = '/ContentKeys'
      body = '{"AuthorizationPolicyId":"' + oid + '"}'
      return helper_add(access_token, ck_id, path, bodyf add_authorization_policy(access_token, ck_id, oid):
      '''Add Media Service Authorization Policy.
  
      Args:
          access_token (str): A valid Azure authentication token.
          ck_id (str): A Media Service Asset Content Key ID.
          options_id (str): A Media Service OID.
  
      Returns:
          HTTP response. JSON body.
      '''
      path = '/ContentKeys'
      body = '{"AuthorizationPolicyId":"' + oid + '"}'
      return helper_add(access_token, ck_id, path, body)
docs: Add Media Service Authorization Policy.
  
      Args:
          access_token (str): A valid Azure authentication token.
          ck_id (str): A Media Service Asset Content Key ID.
          options_id (str): A Media Service OID.
  
      Returns:
          HTTP response. JSON body.