provideCredentialWithoutUserInteraction method not getting called for autofill extension

Question

I am developing password manager App with autofill Credential Provider extension.

method provideCredentialWithoutUserInteraction of ASCredentialProviderViewController is not getting called or not able to trace via breakpoint.

Code I have tried so far:

override func provideCredentialWithoutUserInteraction(for credentialIdentity: ASPasswordCredentialIdentity) {
        print(credentialIdentity.serviceIdentifier.identifier)
        let credToProvide = ASPasswordCredential(user: "udayyy", password: "paasssss")
        self.extensionContext.completeRequest(withSelectedCredential: credToProvide, completionHandler: nil)
    }

also not able to print any logs. Can any one help me with how to debug this method?

What exactly I want show my custom password on top of the keyboard.(shown in below left image)