Auto corrected by following Format Ruby Code

lib/synvert/core/configuration.rb

@@ -111,10 +111,11 @@ def test_result
       #     # Code to be executed with temporary configurations
       #   end
       def with_temporary_configurations(configurations, &block)
-        old_instance_variables = instance_variables.reduce({}) do |hash, var|
-          hash[var] = instance_variable_get(var)
-          hash
-        end
+        old_instance_variables =
+          instance_variables.reduce({}) do |hash, var|
+            hash[var] = instance_variable_get(var)
+            hash
+          end
 
         configurations.each do |variable, value|
           instance_variable_set("@#{variable}", value)

spec/synvert/core/configuration_spec.rb

@@ -22,4 +22,4 @@ module Synvert::Core
       end
     end
   end
-end
+end

spec/synvert/core/rewriter/instance_spec.rb

@@ -269,7 +269,11 @@ module Synvert::Core
     it 'parsers add_callback' do
       instance.instance_variable_set(:@current_visitor, double)
       block = proc {}
-      expect(instance.instance_variable_get(:@current_visitor)).to receive(:add_callback).with(:class_node, at: 'start', &block)
+      expect(instance.instance_variable_get(:@current_visitor)).to receive(:add_callback).with(
+        :class_node,
+        at: 'start',
+        &block
+      )
       instance.add_callback(:class_node, at: 'start', &block)
     end