public String getText(boolean withReturnType, boolean withParentheses, @NotNull Function<? super String, String> transformation) {
      final StringJoiner joiner = new StringJoiner(", ", withParentheses ? "(" : "", withParentheses ? ")" : "");
      if (withReturnType) {
        joiner.add(transformation.apply(myReturnType));
      }
      for (String argumentType : myArgumentTypes) {
        joiner.add(transformation.apply(argumentType));
      }
      return joiner.toString();
    }
public String getText(boolean withReturnType, boolean withParentheses, @NotNull Function<? super String, String> transformation)