why prepareInterfaceToProvideCredential does call

we develop extension "Autofill Credential Provider" function for passkey.

1.first step registe passkey 2.second step authenticate with passkey

step 1 & step 2 has finished and run success with provideCredentialWithoutUserInteraction.

But we want to prepare our interface for use to input password and select passkey what the want. however the func prepareInterfaceToProvideCredential in ASCredentialProviderViewController does call? what i missed? how can i do it?

why prepareInterfaceToProvideCredential does call
 
 
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