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: bool_attr_accessor.rb
    path of file: ./repos/facets/work/rejected/module
    
    the code of the file until where you have to start completion: #--
# Author::    Thomas Sawyer, Tyler Rick
# Copyright:: Cop
    
  def test4_sets_to_boolean_even_if_try_to_set_to_other_type
    M.a! "whatever" 
    assert_equal true, M.a?     # Still returns a boolean even though we tried to set it to a string.

    M.a! nil
    assert_equal false, M.a?    # Still returns a boolean even though we tried to set it to nil.
  end