code: def create_contentkey_authorization_policy(access_token, content):
      '''Create Media Service Content Key Authorization Policy.
  
      Args:
          access_token (str): A valid Azure authentication token.
          content (str): Content Payload.
  
      Returns:
          HTTP response. JSON body.
      '''
      path = '/ContentKeyAuthorizationPolicies'
      endpoint = ''.join([ams_rest_endpoint, path])
      body = content
      return do_ams_post(endpoint, path, body, access_tokenf create_contentkey_authorization_policy(access_token, content):
      '''Create Media Service Content Key Authorization Policy.
  
      Args:
          access_token (str): A valid Azure authentication token.
          content (str): Content Payload.
  
      Returns:
          HTTP response. JSON body.
      '''
      path = '/ContentKeyAuthorizationPolicies'
      endpoint = ''.join([ams_rest_endpoint, path])
      body = content
      return do_ams_post(endpoint, path, body, access_token)
docs: Create Media Service Content Key Authorization Policy.
  
      Args:
          access_token (str): A valid Azure authentication token.
          content (str): Content Payload.
  
      Returns:
          HTTP response. JSON body.