Saurabh,
The hierarchical path of the driver instance (i.e., env0.a_master1.driver and env0.a_master.driver) uniquely specifies which assign_vif function is called.
Saurabh,
The hierarchical path of the driver instance (i.e., env0.a_master1.driver and env0.a_master.driver) uniquely specifies which assign_vif function is called.