class EacRubyUtils::Immutable::HashAccessor
def immutable_value_set(object, key, value)
def immutable_value_set(object, key, value) duplicate_object(object) do |old_value| (old_value || {}).merge(key => value) end end
def immutable_value_set(object, key, value) duplicate_object(object) do |old_value| (old_value || {}).merge(key => value) end end