Nvosd plugin Not found

I can’t find so file of nvosd library in my jetson.
this plugin is not recognized by gst-inspect-1.0 nvosd.
It shows :
No such element or plugin ‘nvosd’
plz help me. I’m noobian in gstreamer.

https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_plugin_gst-nvdsosd.html

https://docs.nvidia.com/metropolis/deepstream/dev-guide/text/DS_Quickstart.html#jetson-setup

what you have sent is nvdsosd.
But I want nvosd.
Are they exactly the same?

Yes, they are the same.