docs: function rewrite(args) {
      // check if splicable is already in the body text
      const re = new RegExp(args.splicable.map(line => `\\s*${escapeRegExp(line)}`).join('\n'));
  
      if (re.test(args.haystack)) {
          return args.haystack;
      }
  
      const lines = args.haystack.split('\n');
  
      let otherwiseLineIndex = -1;
      lines.forEach((line, i) => {
          if (line.includes(args.needle)) {
              otherwiseLineIndex = i;
          }
      });
  
      let spaces = 0;
      while (lines[otherwiseLineIndex].charAt(spaces) === ' ') {
          spaces += 1;
      }
  
      let spaceStr = '';
  
      // eslint-disable-next-line no-cond-assign
      while ((spaces -= 1) >= 0) {
          spaceStr += ' ';
      }
  
      lines.splice(otherwiseLineIndex, 0, args.splicable.map(line => spaceStr + line).join('\n'));
  
      return lines.join('\n');
  }