class ComplexConfig::Provider

def write_config(name, value: nil, encrypt: false, store_key: false)
  name, value = interpret_name_value(name, value)
  config_pathname = pathname(name).to_s
  if encrypt
    ks = provide_key_source(config_pathname, encrypt)
    File.secure_write(config_pathname + '.enc') do |out|
      out.write ComplexConfig::Encryption.new(ks.key_bytes).encrypt(prepare_output(value))
    end
    if store_key
      File.secure_write(config_pathname + '.key') do |out|
        out.write ks.key
      end
    end
    ks.key
  else
    File.secure_write(config_pathname) do |out|
      out.puts prepare_output(value)
    end
    true
  end
ensure
  flush_cache
end