Autofill service not shown in settings autofill service list

Question

I don't expect functionality to work, but shouldn't this be listed in service? Please suggest if I am missing anything.

I have added Service tag in AndroidManifest.xml

<service
            android:name=".MyAutofillService"
            android:label="My Autofill Service"
            android:permission="android.permission.BIND_AUTOFILL_SERVICE"
            android:exported="true">
            <intent-filter>
                <action android:name="android.service.autofill.AutofillService" />
            </intent-filter>

</service>

MyAutofillService class looks like this,

package com.example.myapplication

import android.os.CancellationSignal
import android.service.autofill.*

class MyAutofillService : AutofillService() {
    override fun onFillRequest(p0: FillRequest, p1: CancellationSignal, p2: FillCallback) {
        TODO("Not yet implemented")
    }

    override fun onSaveRequest(p0: SaveRequest, p1: SaveCallback) {
        TODO("Not yet implemented")
    }
}

Added code to start service, I can see it's started.

startService(Intent(applicationContext, MyAutofillService::class.java))

Only thing that is not happening is it's not listed in Autofill service list.