# File lib/safe_yaml.rb, line 37
    def self.unsafe_load_file(filename)
      # https://github.com/tenderlove/psych/blob/v1.3.2/lib/psych.rb#L296-298
      File.open(filename, 'r:bom|utf-8') { |f| self.unsafe_load(f, filename) }
    end