How to use a virtual sequencer or a virtual sequence in an environment?

Theoretically it is good to go but I have checked in multiple resources but not able to get how they are modelled in an UVM env. connecting to a well explaining link is more appreciable

In reply to Arun_Rajha:

Virtual sequences do not belong to an env. They are transient objects.
See here the details:
https://verificationacademy.com/cookbook/sequences/virtual