@requires on a query/mutation using another query/mutation

Hello,
I was wondering if it would be possible to use @requires on a query or mutation ?
For example let’s say I have:

SubGraphA:

query {
    QueryA(var1: String, var2: Int): Boolean @requires (fields: "QueryB")
}

and SubGraphB:

query {
    QueryB: String
}

If it’s possible, can we pass the variables from QueryA to QueryB using @requires ?
Like this:

query {
    QueryA(var1: String, var2: Int): Boolean @requires (fields: "QueryB(var1, var2)")
}

and with :

query {
    QueryB: String
}