docs: private String getReadFromMethodCode() {
          StringBuilder code = new StringBuilder();
  
          code.append("public ").append(ClassHelper.getInternalName(cls.getCanonicalName()))
                  .append(" readFrom(CodedInputStream input) throws IOException {").append(LINE_BREAK);
  
          getParseBytesMethodCode(code);
  
          return code.toString();
      }