def make_request_async(method, path, options = {})
      fail ArgumentError, 'method is nil' if method.nil?
      fail ArgumentError, 'path is nil' if path.nil?

      request_url = options[:base_url] || @base_url
      if(!options[:headers].nil? && !options[:headers]['Content-Type'].nil?)
        @request_headers['Content-Type'] = options[:headers]['Content-Type']
      end

      request_headers = @request_headers
      request_headers.merge!({'accept-language' => @accept_language}) unless @accept_language.nil?
      options.merge!({headers: request_headers.merge(options[:headers] || {})})
      options.merge!({credentials: @credentials}) unless @credentials.nil?

      super(request_url, method, path, options)
    end
def make_request_async(method, path, options = {})
      fail ArgumentError, 'method is nil' if method.nil?
      fail ArgumentError, 'path is nil' if path.nil?

      request_url = options[:base_url] || @base_url
      if(!options[:headers].nil? && !options[:headers]['Content-Type'].nil?)
        @request_headers['Content-Type'] = options[:headers]['Content-Type']
      end

      request_headers = @request_headers
      request_headers.merge!({'accept-language' => @accept_language}) unless @accept_language.nil?
      options.merge!({headers: request_headers.merge(options[:headers] || {})})
      options.merge!({credentials: @credentials}) unless @credentials.nil?

      super(request_url, method, path, options)
    end
Makes a request asynchronously.
 @param method [Symbol] with any of the following values :get, :put, :post, :patch, :delete.
 @param path [String] the path, relative to {base_url}.
 @param options [Hash{String=>String}] specifying any request options like :body.
 @return [Concurrent::Promise] Promise object which holds the HTTP response.