gitlab-org--gitlab-foss/app/serializers/base_serializer.rb

class BaseSerializer
  attr_reader :params

  def initialize(params = {})
    @params = params
    @request = EntityRequest.new(params)
  end

  def represent(resource, opts = {}, entity_class = nil)
    entity_class = entity_class || self.class.entity_class

    entity_class
      .represent(resource, opts.merge(request: @request))
      .as_json
  end

  def self.entity(entity_class)
    @entity_class ||= entity_class
  end

  def self.entity_class
    @entity_class
  end
end