Google Fit API を使用したい

前提・実現したいこと

AndroidStudioにてGoogle Fit APIを使用したいのですがサンプルコード内accessGoogleFit()のコメントUse response data hereにどういったコードを書けばいいかわかりません。
ご教授お願い致します。

該当のソースコード

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        FitnessOptions fitnessOptions = FitnessOptions.builder()
                .addDataType(DataType.TYPE_STEP_COUNT_DELTA, FitnessOptions.ACCESS_READ)
                .addDataType(DataType.AGGREGATE_STEP_COUNT_DELTA, FitnessOptions.ACCESS_READ)
                .build();
        GoogleSignInAccount account = GoogleSignIn.getAccountForExtension(this, fitnessOptions);
    
        if (!GoogleSignIn.hasPermissions(account, fitnessOptions)) {
            GoogleSignIn.requestPermissions(
                    this, // your activity
                    GOOGLE_FIT_PERMISSIONS_REQUEST_CODE, // e.g. 1
                    account,
                    fitnessOptions);
        } else {
            accessGoogleFit();
        }

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == Activity.RESULT_OK) {
            if (requestCode == GOOGLE_FIT_PERMISSIONS_REQUEST_CODE) {
                accessGoogleFit();
            }
        }
    }

    private void accessGoogleFit() {
        Calendar cal = Calendar.getInstance();
        cal.setTime(new Date());
        long endTime = cal.getTimeInMillis();
        cal.add(Calendar.YEAR, -1);
        long startTime = cal.getTimeInMillis();

        DataReadRequest readRequest = new DataReadRequest.Builder()
                .aggregate(DataType.TYPE_STEP_COUNT_DELTA, DataType.AGGREGATE_STEP_COUNT_DELTA)
                .setTimeRange(startTime, endTime, TimeUnit.MILLISECONDS)
                .bucketByTime(1, TimeUnit.DAYS)
                .build();

        GoogleSignInAccount account = GoogleSignIn
                .getAccountForExtension(this, fitnessOptions);

        Fitness.getHistoryClient(this, account)
                .readData(readRequest)
                .addOnSuccessListener(response -> {
                    // Use response data here

                    Log.d(TAG, "OnSuccess()");
                })
                .addOnFailureListener(e -> {
                    Log.d(TAG, "OnFailure()", e);
                });
    }

}