Which UVM API can provide list of uvm_objects at any given instance?

I need to find list all UVM objects active at a given instance for debug.

Which API shall provide me this info?

In reply to superUVM:

The UVM only maintains list of uvm_components, uvm_sequences, and uvm_pool classes (maybe a few other specialties) Anything else requires tool specific help, or writing SystemVerilog VPI routines to traverse.