code: def test_projectors_basic(projector, img, tmp_path):
      """Basic tests for projectors."""
      projector = projector.init_with_figure(img=img)
      projector.add_overlay(img, cmap=plt.cm.gray)
      projector.savefig(tmp_path / "out.png")
      projector.close()
  
imports: import matplotlib
  import matplotlib.pyplot
  import numpy
  import pytest
  from nibabel import Nifti1Image
  from nilearn.datasets import load_mni152_template
  from nilearn.plotting.displays import BaseAxes, LProjector, LRProjector, LYRProjector, LYRZProjector, LZRProjector, LZRYProjector, MosaicSlicer, OrthoProjector, OrthoSlicer, RProjector, TiledSlicer, XProjector, XSlicer, XZProjector, XZSlicer, YProjector, YSlicer, YXProjector, YXSlicer, YZProjector, YZSlicer, ZProjector, ZSlicer
label_desc: Use image node_id 16 for calling a global function with example usage: test_projectors_basic(projector, img, tmp_path) without return types