code: def create_data():
      seq_len = 400
      data = pd.DataFrame(
          pd.date_range("20130101", periods=seq_len), columns=["ds"]
      )
      data.insert(1, "y", np.random.rand(seq_len))
      horizon = np.random.randint(2, 50)
      validation_data = pd.DataFrame(
          pd.date_range("20140426", periods=horizon), columns=["ds"]
      )
      validation_data.insert(1, "y", np.random.rand(horizon))
      return data, validation_data
  
file_path: analytics-zoo/pyzoo/test/zoo/chronos/forecaster/test_prophet_forecaster.py
imports: import numpy
  import pandas
  import tempfile
  import os
  from zoo.chronos.forecaster.prophet_forecaster import ProphetForecaster
  from unittest import TestCase
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: create_data() and returns: data,  validation_data