code: def sunz_ds1_stacked():
      """Generate fake dataset for sunz tests."""
      attrs = _shared_sunz_attrs(_sunz_stacked_area_def())
      return _get_ds1(attrs)
  
imports: import unittest
  from datetime import datetime
  from unittest import mock
  import dask.array
  import numpy
  import pytest
  import xarray
  from pyresample.geometry import AreaDefinition, StackedAreaDefinition
  from pytest_lazyfixture import lazy_fixture
label_desc: Use image node_id 7 for calling a global function with example usage: sunz_ds1_stacked() and returns: _get_ds1