Convert a dense layer from keras to coreml.

    Parameters
    keras_layer: layer
    ----------
        A keras layer object.

    builder: NeuralNetworkBuilder
        A neural network builder object.

def convert_dense(builder, layer, input_names, output_names, keras_layer):
    """Convert a dense layer from keras to coreml.

    Parameters
    keras_layer: layer
    ----------
        A keras layer object.

    builder: NeuralNetworkBuilder
        A neural network builder object.
    """
    # Get input and output names
    input_name, output_name = (input_names[0], output_names[0])

    has_bias = keras_layer.bias
    # Get the weights from keras
    W = keras_layer.get_weights ()[0].T
    Wb = keras_layer.get_weights ()[1].T if has_bias else None

    builder.add_inner_product(name = layer,
            W = W,
            b = Wb,
            input_channels = keras_layer.input_dim,
            output_channels = keras_layer.output_dim,
            has_bias = has_bias,
            input_name = input_name,
            output_name = output_name)