You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: private_methods.rb
    path of file: ./repos/sorbet/test/testdata/infer
    
    the code of the file until where you have to start completion: # typed: true

    
def foo; end

class Test
  def using_symbol
    1
  end
  private :using_symbol

  private def using_symbol_returned_by_def
    2
  end