Test the model on a single batch of samples.
Arguments
- object
 Keras model object
- x
 Input data. Must be array-like.
- y
 Target data. Must be array-like.
- sample_weight
 Optional array of the same length as x, containing weights to apply to the model's loss for each sample. In the case of temporal data, you can pass a 2D array with shape
(samples, sequence_length), to apply a different weight to every timestep of every sample.- ...
 for forward/backward compatability