fixes

from deepchem.models.models import Model

from deepchem.models.multitask import SingletaskToMultitask

from deepchem.models.wandblogger import WandbLogger

from deepchem.models.callbacks import ValidationCallback

# Tensorflow Depedency Models

try:

  from deepchem.models.keras_model import KerasModel

  from deepchem.models.callbacks import ValidationCallback

  from deepchem.models.IRV import MultitaskIRVClassifier

  from deepchem.models.robust_multitask import RobustMultitaskClassifier

from deepchem.utils.evaluate import Evaluator

from deepchem.utils.evaluate import GeneratorEvaluator

try:

  import tensorflow as tf

  import tensorflow as tf  # noqa

  has_tensorflow = True

except:

  has_tensorflow = False

try:

  import torch

  import torch  # noqa

  has_pytorch = True

except:

  has_pytorch = False