Required files
active_support/core_ext/module/delegation
active_support/deprecation
json
active_support/json/variable
active_support/json/encoders/date
active_support/json/encoders/date_time
active_support/json/encoders/enumerable
active_support/json/encoders/false_class
active_support/json/encoders/hash
active_support/json/encoders/nil_class
active_support/json/encoders/numeric
active_support/json/encoders/object
active_support/json/encoders/regexp
active_support/json/encoders/string
active_support/json/encoders/symbol
active_support/json/encoders/time
active_support/json/encoders/true_class