Grape logger invalid

in lib/grape/dsl/logger.rb, we can see:

module Grape
  module DSL
    module Logger
      include Grape::DSL::Settings

      attr_writer :logger

      # Set or retrive the configured logger. If none was configured, this
      # method will create a new one, logging to stdout.
      # @param logger [Object] the new logger to use
      def logger(logger = nil)
        if logger
          global_setting(:logger, logger)
        else
          global_setting(:logger) || global_setting(:logger, ::Logger.new($stdout))
        end
      end
    end
  end
end

Here is a problem, we can not set logger by Grape::API.logger = xxx, instead, we should call Grape::API.logger(xxx).

Seems something wrong with the attribute writter 'logger=' ?

Read lib/grape/dsl/logger.rb, starting with the logger method and the attr_writer :logger declaration, then check how Grape::API.logger= and Grape::API.logger(xxx) resolve. Confirm that assignment configures the logger as intended without breaking the existing method form.