code: def test_pspnet(backbone):
      _test_shape(
          PSPNet,
          backbone,
          input_shape=(384, 384, 4),
          encoder_weights=None,
      )
  
      _test_shape(
          PSPNet,
          backbone,
          input_shape=(384, 384, 3),
          encoder_weights="imagenet",
      )
  
file_path: segmentation_models/tests/test_models.py
imports: import os
  import pytest
  import random
  import six
  import numpy
  import segmentation_models
  from segmentation_models import Unet
  from segmentation_models import Linknet
  from segmentation_models import PSPNet
  from segmentation_models import FPN
  from segmentation_models import get_available_backbone_names
label_desc: Use image node_id 8 for calling a global function with example usage: test_pspnet(backbone) without return types