class ActiveModelSerializers::Adapter::JsonApi::Link

def initialize(serializer, value)
  @_routes ||= nil # handles warning
  # actionpack-4.0.13/lib/action_dispatch/routing/route_set.rb:417: warning: instance variable @_routes not initialized
  @object = serializer.object
  @scope = serializer.scope
  # Use the return value of the block unless it is nil.
  if value.respond_to?(:call)
    @value = instance_eval(&value)
  else
    @value = value
  end
end