code: def _shared_sunz_attrs(area_def):
      attrs = {
          "area": area_def,
          "start_time": datetime(2018, 1, 1, 18),
          "modifiers": tuple(),
          "name": "test_vis",
      }
      return 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 4 for calling a global function with example usage: _shared_sunz_attrs(area_def) and returns: attrs