code: def out_path(tmpdir):
      """A path for an output .tif file."""
      return os.path.join(str(tmpdir), "out.tif")
  
imports: import os
  import numpy
  import pytest
  from affine import Affine
  import rasterio
  import geopandas
  from shapely.geometry import Polygon
label_desc: Use image node_id 8 for calling a global function with example usage: out_path(tmpdir) and returns: os