code: function getEmphasisToken({ tokens, intEmphasis, currTag, num }) {
    const rawContent = joinArrString(_.flattenDeep([
      tokens[num].markup,
      intEmphasis,
      tokens[num].markup
    ]));
    const contentLength = getTokensLength(rawContent);
    return {
      type: getEmphasisType(currTag),
      content: rawContent,
      length: contentLength
    };
  }
docs: getEmphasisToken - Function create emphasis-token
  
  @param tokens
  @param intEmphasis
  @param currTag
  @param num
  @returns {{type, content, length}}