text: /**
   * kintone api - DingTalk client
   * Connection constants
   */
  
  const constant = function () {
    return {
      BASE: {
        USER_AGENT: 'User-Agent',
        CONTENT_TYPE: 'content-type',
        CONTENT_TYPE_HTML: 'application/html',
        CONTENT_TYPE_JSON: 'application/json',
        X_HTTP_METHOD_OVERRIDE: 'X-HTTP-Method-Override'
      },
      REQUEST: {
        DATATYPE_JSON: 'json',
        RESPONSE_TYPE: 'responseType',
        RESPONSE_TYPE_TEXT: 'text',
        RESPONSE_TYPE_ARRAYBUFFER: 'arraybuffer'
      }
    };
  };
  
  module.exports = constant();