function _validResponseHeader(headers, header) {
      if (headers && headers.includes(header)) {
        return true;
      }
      return `Required ${header} not found`;
        
    }
/*
       Helper for checking header in headers
    */
Helper for checking header in headers
Helper for checking header in headers
function _validResponseHeader(headers, header) {
      if (headers && headers.includes(header)) {
        return true;
      }
      return `Required ${header} not found`;
    }
function _validResponseHeader ( headers , header ) { if ( headers && headers . includes ( header ) ) { return true ; } return ` ${ header } ` ; }
Helper for checking header in headers
Helper for checking header in headers