message: To add a check of `input_dims` greater than zero in embedding layers.
  Fixes:
diff: @@ -112,6 +112,9 @@ class Embedding(Layer):
  super(Embedding, self).__init__(dtype=dtype, **kwargs)
  self.input_dim = input_dim
  + if self.input_dim <= 0:
  + raise ValueError('The argument `input_dim` should be greater than zero. '
  + 'Received: %s' % input_dim)
  self.output_dim = output_dim
  self.embeddings_initializer = initializers.get(embeddings_initializer)
  self.embeddings_regularizer = regularizers.get(embeddings_regularizer)
  