class_docstr: Implements the PCT model for multi-label classification.
code: def default_flax_model_config(self) -> ml_collections.ConfigDict:
      return _get_default_configs_for_testing()
  
imports: from typing import Any
  import flax.linen
  from flax.linen.initializers import zeros
  import jax
  import jax.numpy
  import ml_collections
  from scenic.model_lib.base_models.multilabel_classification_model import MultiLabelClassificationModel
  from scenic.projects.performer import performer
label_desc: Use image node_id 2 for calling the PointCloudTransformerClassificationModel obj's underlying member method code with example usage: obj.default_flax_model_config() and returns: _get_default_configs_for_testing