designer/testData/property/MaterialButton.java

package com.google.android.material.button;

import android.content.Context;
import android.support.v7.widget.AppCompatButton;
import android.util.AttributeSet;

public class MaterialButton extends AppCompatButton {
  public MaterialButton(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  }
}