(Program
  (Call
  { (MemberAccess
      (Identifier)
      (Identifier))
  ->(Identifier) }
    (Empty))
{-(Call
    (Identifier)
    (Identifier)
    (Identifier)
    (KeyValue
      (Symbol)
      (Integer))
    (KeyValue
      (Identifier)
      (Integer))
    (Empty))-}
{-(Call
    (Identifier)
    (Call
      (Identifier)
      (Identifier)
      (Empty))
    (Empty))-}
{-(Call
    (Identifier)
    (KeyValue
      (Array)
      (Integer))
    (Identifier)
    (Identifier)
    (Function
      (Empty)
      (Identifier)
      (
        (Function
          (Empty)
          (
            (Integer)))))
    (Empty))-})