code: function fix(fixer, left, right, spacing) {
              if (commentsExistBetween(left, right)) {
                  return null;
              }
              if (spacing) {
                  return fixer.insertTextAfter(left, " ");
              }
              return fixer.removeRange([left.range[1], right.range[0]]);
          }
docs: Fix the spacing between the given 2 tokens.
  @param {RuleFixer} fixer The fixer to fix.
  @param {Token} left The left token of fix range.
  @param {Token} right The right token of fix range.
  @param {boolean} spacing The spacing style. `true` if there should be a space.
  @returns {Fix|null} The fix object.