class_docstr: Mask Generator
code: def generate_params(self, n_masks, mask_shape, rng=None):
      raise NotImplementedError("Abstract")
  
file_path: PaddleSeg/contrib/CrossPseudoSupervision/batch_transforms/mask_gen.py
imports: import numpy
  from cvlibs import manager
label_desc: Use image node_id 1 for calling the MaskGenerator obj's underlying member method code with example usage: obj.generate_params(n_masks, mask_shape, rng) without return types