Understaning simple reading object

[korenron]

Hello,
I'm missing something very simple

I'm reading BLE data using https://github.com/IanHarvey/bluepy

on this part I want to know all the information I can get from the scanning , so I'm trying to prinr "dev"

scanner = Scanner().withDelegate(ScanDelegate())
    devices = scanner.scan(10.0)

    for dev in devices:
        print(dev)
        print ("Device %s (%s), RSSI=%d dB " % (dev.addr, dev.addrType, dev.rssi, ))

I get this

2022-02-09 10:22:31,117 <bluepy.btle.ScanEntry object at 0xb64c6210>
2022-02-09 10:22:31,124 <bluepy.btle.ScanEntry object at 0xb64c6070>
2022-02-09 10:22:31,132 <bluepy.btle.ScanEntry object at 0xb64c61f0>
2022-02-09 10:22:31,149 <bluepy.btle.ScanEntry object at 0xb64c62f0>
2022-02-09 10:22:31,155 <bluepy.btle.ScanEntry object at 0xb64c6190>
2022-02-09 10:22:31,159 <bluepy.btle.ScanEntry object at 0xb64c6250>

my question is
how can I know what kind of informaton there is in the dev object?
I know there is rssi,addr -
but what else?

*** this quesiton is not just gor the ble scan - it's something bigger I'm missing

Thanks ,