@Nullable
  @Override
  public Pair<PsiType, ConstraintType> inferTypeConstraintFromCallContext(PsiExpression innerMethodCall,
                                                                          PsiExpressionList parent,
                                                                          PsiCallExpression contextCall,
                                                                          PsiTypeParameter typeParameter) {
    return null;
  }
@Nullable
  @Override
  public Pair<PsiType, ConstraintType> inferTypeConstraintFromCallContext(PsiExpression innerMethodCall,
                                                                          PsiExpressionList parent,
                                                                          PsiCallExpression contextCall,
                                                                          PsiTypeParameter typeParameter)