"""
from typing import Dict, Callable, Optional
import numpy as np
import tensorflow.compat.v2 as tf
__all__ = [
'encode_array',
'decode_array',
'ArrayDictReader',
'ArrayDictWriter',
]
# Needed for decoding serialized arrays.
_CLS = type(tf.make_tensor_proto([0]))
ArrayEncoderFn = Callable[[np.ndarray], bytes]
ArrayDecoderFn = Callable[[bytes], np.ndarray]
def encode_array(x: np.ndarray) -> bytes:
"""Encodes a numpy array using `TensorProto` protocol buffer."""
return tf.make_tensor_proto(x).SerializeToString()
def decode_array(bytestring: bytes) -> np.ndarray:
"""Decodes a bytestring into a numpy array.
The bytestring should be a serialized `TensorProto` instance. For more details
see `tf.make_tensor_proto`.
def encode_array(x: np.ndarray) -> bytes:
"""Encodes a numpy array using `TensorProto` protocol buffer."""
return tf.make_tensor_proto(x).SerializeToString()
def _hash(tensor):
content = tf.make_tensor_proto(tensor).SerializeToString()
return hashlib.md5(content).hexdigest()