# methods which can *not* be called
-sub add_method { confess 'Cannot call method "add_method" on an immutable instance' }
-sub alias_method { confess 'Cannot call method "alias_method" on an immutable instance' }
-sub remove_method { confess 'Cannot call method "remove_method" on an immutable instance' }
-
-sub add_attribute { confess 'Cannot call method "add_attribute" on an immutable instance' }
-sub remove_attribute { confess 'Cannot call method "remove_attribute" on an immutable instance' }
+sub add_method { confess 'Cannot call method "add_method" on an immutable instance' }
+sub alias_method { confess 'Cannot call method "alias_method" on an immutable instance' }
+sub remove_method { confess 'Cannot call method "remove_method" on an immutable instance' }
+
+sub add_attribute { confess 'Cannot call method "add_attribute" on an immutable instance' }
+sub remove_attribute { confess 'Cannot call method "remove_attribute" on an immutable instance' }
sub add_package_symbol { confess 'Cannot call method "add_package_symbol" on an immutable instance' }
sub remove_package_symbol { confess 'Cannot call method "remove_package_symbol" on an immutable instance' }