fix styles per rubocop

app/controllers/spree/admin/shipping_methods_controller.rb

@@ -84,8 +84,7 @@ module Spree
 
       def permitted_resource_params
         params.require(:shipping_method).permit(
-          :name, :description, :display_on,
-          :require_ship_address, :tag_list, :calculator_type,
+          :name, :description, :display_on, :require_ship_address, :tag_list, :calculator_type,
           distributor_ids: [],
           calculator_attributes: [
             :id, :preferred_currency, :preferred_amount, :preferred_unit_from_list,

app/helpers/spree/admin/base_helper.rb

@@ -113,10 +113,13 @@ module Spree
 
         object.preferences.keys.map { |key|
           preference_label = form.label("preferred_#{key}",
-            Spree.t(key.to_s.gsub("_from_list", "")) + ": ").html_safe
-          preference_field = preference_field_for(form, "preferred_#{key}",
-            { type: object.preference_type(key) }, object).html_safe
-          { :label => preference_label, :field => preference_field }
+                                        Spree.t(key.to_s.gsub("_from_list", "")) + ": ").html_safe
+          preference_field = preference_field_for(
+            form,
+            "preferred_#{key}",
+            { type: object.preference_type(key) }, object
+          ).html_safe
+          { label: preference_label, field: preference_field }
         }
       end
 

app/models/calculator/weight.rb

@@ -14,9 +14,9 @@ module Calculator
 
     def set_preference(name, value)
       if name == :unit_from_list && !["kg", "lb"].include?(value)
-        self.calculable.errors.add(:preferred_unit_from_list, I18n.t(:calculator_preferred_unit_error))
+        calculable.errors.add(:preferred_unit_from_list, I18n.t(:calculator_preferred_unit_error))
       else
-        send self.class.preference_setter_method(name), value
+        __send__ self.class.preference_setter_method(name), value
       end
     end