class Lookbook::EmbedsController

def set_params
  @params = []
  @passed_params = req_params.select { |key, value| !key.to_s.start_with?("_") }
  if @target
    @params = @target.tags("param").map do |param_tag|
      Param.from_tag(
        param_tag,
        value: @passed_params[param_tag.name.to_sym]
      )
    end
    # cast known param values to correct type
    @params.each do |param|
      if @passed_params.key?(param.name.to_sym)
        @passed_params[param.name.to_sym] = param.cast_value
      end
    end
  end
end