String getIntermediateStepsFromCollection() {
      PsiLocalVariable variable = getTargetVariable();
      if (variable == null) return null;
      PsiExpression initializer = variable.getInitializer();
      if (initializer == null) return null;
      PsiClass aClass = PsiUtil.resolveClassInClassTypeOnly(initializer.getType());
      if (aClass == null) return null;
      return INTERMEDIATE_STEPS.get(aClass.getQualifiedName());
    }
String getIntermediateStepsFromCollection()