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public SomeClass SomeFunction(Input input)
{
   SomeType outA;
   AnotherType outB;
   ThirdType outC;
   return somefield.DoSomething(
      name1: input.Field1,
      name2: input.Field2,
      name3: input.Field3,
      name4: input.SomeCollection.SelectMany(...).Where(...).Select(...), // This field gets mixed up with...
      name5: input.AnotherCollection.Select(...), // This field...
      name6: out outA,
      name7: out outB,
      name8: out outC
   );
}