text: """Expose only the models."""
  from .models import FFNN, GCN_normed, GCN_simple
  from .train import fit_network, forward_step
  from .utils import sparsize
  from .validation import Validation
  
  __all__ = [
      "GCN_simple",
      "GCN_normed",
      "FFNN",
      "fit_network",
      "forward_step",
      "sparsize",
      "Validation",
  ]
  