you want to use the default value for it, but still want to set C<$attrs>.
The following attributes are recognize:
-=over 4
-
-=item join_type
+=head2 join_type
Explicitly specifies the type of join to use in the relationship. Any SQL
join type is valid, e.g. C<LEFT> or C<RIGHT>. It will be placed in the SQL
command immediately before C<JOIN>.
-=item proxy
+=head2 proxy
An arrayref containing a list of accessors in the foreign class to proxy in
the main class. If, for example, you do the following:
my $obj = Foo->find(1);
$obj->margle(10); # set margle; Bar object is created if it doesn't exist
-=back
-
=head2 belongs_to
my $f_obj = $obj->relname;