This structure holds all the arguments necessary for one op as part
of a containing multi_op via \ref zoo_multi or \ref zoo_amulti.
This structure should be treated as opaque and initialized via
\ref zoo_create_op_init, \ref zoo_delete_op_init, \ref zoo_set_op_init
and \ref zoo_check_op_init.
\brief zoo_op structure.
This structure holds all the arguments necessary for one op as part of a containing multi_op via \ref zoo_multi or \ref zoo_amulti. This structure should be treated as opaque and initialized via \ref zoo_create_op_init, \ref zoo_delete_op_init, \ref zoo_set_op_init and \ref zoo_check_op_init.