private @NotNull String getFoldingHeader() {
    String methodName = shouldShowMethodName() ? myMethod.getName() : "";
    String type = myQuick ? "" : getOptionalLambdaType();
    String params = StringUtil.join(myMethod.getParameterList().getParameters(), psiParameter -> psiParameter.getName(), ", ");
    return type + methodName + "(" + params + ") " + myBuilder.rightArrow() + " {";
  }
private @NotNull String getFoldingHeader()