@Override
    public void sendKeys(CharSequence... keysToSend) {
      StringBuilder sb = new StringBuilder();
      for (CharSequence keys : keysToSend) {
        sb.append(keys);
      }
      send(sb.toString());
    }
Sends key events to the {@code Instrumentation}. This method will send a portion of the given
{@code CharSequence} as a single {@code String} if the portion does not contain any special
keys.

@param text the keys to send to the {@code Instrumentation}.
selendroid-server/src/main/java/io/selendroid/server/android/InstrumentedKeySender.java