(Program
  (Package
    (Identifier))
  (Function
    (Empty)
    (Identifier)
    ([])
    (Call
      (MemberAccess
        (MemberAccess
        { (Identifier)
        ->(Identifier) }
        { (Identifier)
        ->(Identifier) })
      { (Identifier)
      ->(Identifier) })
      ([])
      (Empty))))