@Nullable
  public static MethodReferenceBag getMethodParameterReferenceBag(
      PsiElement psiElement, int wantIndex) {

    PsiElement variableContext = psiElement.getContext();
    if (!(variableContext instanceof ParameterList)) {
      return null;
    }

    ParameterList parameterList = (ParameterList) variableContext;
    if (!(parameterList.getContext() instanceof MethodReference)) {
      return null;
    }

    ParameterBag currentIndex = PsiElementUtils.getCurrentParameterIndex(psiElement);
    if (currentIndex == null) {
      return null;
    }

    if (wantIndex >= 0 && currentIndex.getIndex() != wantIndex) {
      return null;
    }

    return new MethodReferenceBag(
        parameterList, (MethodReference) parameterList.getContext(), currentIndex);
  }
  @Nullable
  public static String getArrayHashValue(
      ArrayCreationExpression arrayCreationExpression, String keyName) {
    ArrayHashElement translationArrayHashElement =
        PsiElementUtils.getChildrenOfType(
            arrayCreationExpression,
            PlatformPatterns.psiElement(ArrayHashElement.class)
                .withFirstChild(
                    PlatformPatterns.psiElement(PhpElementTypes.ARRAY_KEY)
                        .withText(
                            PlatformPatterns.string()
                                .oneOf("'" + keyName + "'", "\"" + keyName + "\""))));

    if (translationArrayHashElement == null) {
      return null;
    }

    if (!(translationArrayHashElement.getValue() instanceof StringLiteralExpression)) {
      return null;
    }

    StringLiteralExpression valueString =
        (StringLiteralExpression) translationArrayHashElement.getValue();
    if (valueString == null) {
      return null;
    }

    return valueString.getContents();
  }