code: def _make_ts(start_value=0, n=100):
      times = pd.date_range(start="1/1/2013", periods=n, freq="D")
      pd_series = pd.Series(
          range(start_value, start_value + n), index=times
      )
      return TimeSeries.from_series(pd_series)
  
imports: import numpy
  import pandas
  import pytest
  from darts import TimeSeries
  from darts.logging import get_logger
  from darts.models import ExponentialSmoothing, LinearRegressionModel, NaiveDrift, NaiveEnsembleModel, NaiveSeasonal, StatsForecastAutoARIMA, Theta
  from darts.tests.conftest import tfm_kwargs
  from darts.utils import timeseries_generation
label_desc: Use image node_id 1 for calling a global function with example usage: _make_ts(start_value, n) and returns: TimeSeries