Question: What are the different segment values?

[yudistrange]

We are calculating the segment in the following snippet.

kiteconnect-rs/src/ticker.rs

Line 197 in 7fdd0a1

let segment = instrument_token & 0xFF;

From digging further, it seems like segment is used to differentiate between an equity quote vs an index quote vs a currency quote.

Is that the correct understanding? Can someone also elaborate on what values can segment take and what they represent.
Also I couldn't find this information on the zerodha's kite trade API documentation page. Please point me to the right place.

Thank you!