<KOTLIN - How can I pass a parameter from activity...

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KOTLIN - How can I pass a parameter from activity to fragment without displaying it on the fragment
I am trying to pass the value of type from activity to fragment, but keep getting null in the log.
The code is as follows :
Code in the activity written for passing the value to the fragment
//for variable transfer to fragment
val fragment=FragmentSettings()
val fragmentManager : FragmentManager = supportFragmentManager
val fragmentTransaction : FragmentTransaction = fragmentManager.beginTransaction()

var type = snapshot.child("spinner").getValue(String::class.java).toString()...