Converts the input Keras model to TFLite format.

saved_model_file Keras model to be converted to TFLite.
quantization_config Configuration for post-training quantization.
supported_ops A list of supported ops in the converted TFLite file.
preprocess A callable to preprocess the representative dataset for quantization. The callable takes three arguments in order: feature, label, and is_training.
allow_custom_ops A boolean flag to enable custom ops in model convsion. Default to False.

bytearray of TFLite model