code: function(captions) {
          var SRT_BODY = [],
              counter = 1;
          captions.forEach(function(caption) {
              if (caption.text.length > 0 && validateText(caption.text)) {
                  SRT_BODY.push(counter);
                  SRT_BODY.push(module.exports.formatTime(caption.startTimeMicro) + ' --> ' + module.exports.formatTime(caption.endTimeMicro));
                  SRT_BODY.push(module.exports.renderMacros(macros.fixItalics(macros.cleanMacros(caption.text))) + '\n');
                  counter++;
              }
          });
          return SRT_BODY.join('\n');
      }
docs: Generates SRT captions from JSON
  @function
  @param {array} captions - JSON array of captions
  @public