Creates a new attribute in the owner class, inheriting options from parent classes.
Accessors and helper methods are installed. Some error checking is done.
-=item C<< get_read_method_ref >>\r
+=head2 C<< get_read_method_ref >>\r
\r
-=item C<< get_write_method_ref >>\r
+=head2 C<< get_write_method_ref >>\r
\r
Returns the subroutine reference of a method suitable for reading or\r
writing the attribute's value in the associated class. These methods\r