code: protected void addParam(ExecutableElement member, VariableElement param,
              boolean isVarArg, Content tree) {
          Content link = writer.getLink(new LinkInfoImpl(configuration, EXECUTABLE_MEMBER_PARAM,
                  param.asType()).varargs(isVarArg));
          tree.addContent(link);
          if(name(param).length() > 0) {
              tree.addContent(Contents.SPACE);
              tree.addContent(name(param));
          }
      }
docs: Add the parameter for the executable member.
  
  @param member the member to write parameter for.
  @param param the parameter that needs to be written.
  @param isVarArg true if this is a link to var arg.
  @param tree the content tree to which the parameter information will be added.