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class CreditCardNumberFormattingTextWatcher : TextWatcher {

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    private var current = ""

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    override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {

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import android.content.DialogInterface

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import androidx.appcompat.app.AlertDialog

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import com.jakewharton.rxbinding2.view.clicks

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import io.reactivex.Maybe

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import io.reactivex.Single

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import android.content.SharedPreferences

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import io.reactivex.Maybe

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import io.reactivex.Single

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@androidx.annotation.CheckResult

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import io.reactivex.Observable

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import io.reactivex.Single

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import io.reactivex.disposables.Disposables

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import io.socket.client.IO

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import io.socket.client.Socket

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import android.content.Context

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import com.google.android.gms.maps.GoogleMap

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import com.google.android.gms.maps.SupportMapFragment

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import io.reactivex.Observable

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import io.reactivex.Single

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import android.content.res.Resources

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import android.util.TypedValue

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    fun init(resources: Resources) {