class ActiveModel::AttributeMutationTracker
def attribute_changed?(attr_name)
Experimental RBS support (using type sampling data from the type_fusion project).
def attribute_changed?: (String attr_name) -> false
This signature was generated using 10 samples from 2 applications.
def attribute_changed?(attr_name) forced_changes.include?(attr_name) || !!attributes[attr_name].changed? end