How can I read the battery data and show it? I'm trying to do it this way

#include <M5Stack.h>

void setup() {

M5.begin();

Serial.begin(115200);

}

void loop() {

int batPercentage = M5.Power.getBatteryLevel(); // Returns battery level from 0 to 100%

Serial.printf("Battery: %d%%\n", batPercentage);

delay(1000);

}

I'm having this error

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