'Predict prediction tensors from inputs tensor.
Outputs of this function can be passed to loss or postprocess functions.
Args:
preprocessed_inputs: a [batch, height, width, channels] float32 tensor
representing a batch of images.
Returns:
prediction_dict: a dictionary holding prediction tensors to be
passed to the Loss or Postprocess functions.'

@abstractmethod
def predict(self, preprocessed_inputs):

    pass
