Object#block in __pry__
(pry):6
Student#__temp__16c6961637f5e616d65637=
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/write.rb:18
Student#write_attribute
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/write.rb:31
Student#write_attribute_with_type_cast
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/write.rb:45
String#to_s
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_methods/write.rb:46
ActiveRecord::AttributeSet#write_from_user
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:52
ActiveRecord::AttributeSet#[]
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set.rb:11
ActiveRecord::LazyAttributeHash#[]
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set/builder.rb:41
ActiveRecord::Attribute::FromDatabase#with_value_from_user
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:66
ActiveRecord::Type::Serialized#assert_valid_value
$GemPath0/gems/activerecord-5.0.4/lib/active_record/type/serialized.rb:44
Kernel#respond_to?
$GemPath0/gems/activerecord-5.0.4/lib/active_record/type/serialized.rb:45
ActiveRecord::Coders::YAMLColumn#assert_valid_value
$GemPath0/gems/activerecord-5.0.4/lib/active_record/coders/yaml_column.rb:32
Kernel#nil?
$GemPath0/gems/activerecord-5.0.4/lib/active_record/coders/yaml_column.rb:33
Kernel#is_a?
$GemPath0/gems/activerecord-5.0.4/lib/active_record/coders/yaml_column.rb:33
Kernel#class
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:68
ActiveRecord::Attribute::FromDatabase.from_user
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:8
Class#new
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:9
ActiveRecord::Attribute::FromUser#initialize
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute.rb:29
ActiveRecord::LazyAttributeHash#[]=
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set/builder.rb:45
Kernel#frozen?
$GemPath0/gems/activerecord-5.0.4/lib/active_record/attribute_set/builder.rb:46