我正在尝试从这里加载模型以便对图像进行推断。关键是我想一次预测多个图像，但是当我尝试它时，我收到以下错误：
代码：
tensor = tf.convert_to_tensor(np.array([np.asarray(resized_image)]))
tensor2 = tf.convert_to_tensor(np.array([np.asarray(resized_image), np.asarray(resized_image)]))
test = model_new.signatures['serving_default'](tensor)
test2 = model_new.signatures['serving_default'](tensor2)
错误：
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<timed exec> in <module>
~/miniconda3/envs/tex/lib/python3.7/site-packages/tensorflow_core/python/eager/function.py in __call__(self, *args, **kwargs)
1079 TypeError: For invalid positional/keyword argument combinations.
1080 """
-> 1081 return self._call_impl(args, kwargs)
1082
1083 def _call_impl(self, args, kwargs, cancellation_manager=None):
~/miniconda3/envs/tex/lib/python3.7/site-packages/tensorflow_core/python/eager/function.py in _call_impl(self, args, kwargs, cancellation_manager)
1119 raise TypeError("Keyword arguments {} unknown. Expected {}.".format(
1120 list(kwargs.keys()), list(self._arg_keywords)))
-> 1121 return self._call_flat(args, self.captured_inputs, cancellation_manager)
1122
1123 def _filtered_call(self, args, kwargs):
~/miniconda3/envs/tex/lib/python3.7/site-packages/tensorflow_core/python/eager/function.py in _call_flat(self, args, captured_inputs, cancellation_manager)
1208 arg_name, arg,
1209 self._func_graph.inputs[i].shape,
-> 1210 arg.shape))
1211 elif (self._signature is not None and
1212 isinstance(self._signature[i], tensor_spec.TensorSpec)):
ValueError: The argument 'ImageTensor' (value Tensor("Const_3:0", shape=(2, 342, 513, 3), dtype=uint8)) is not compatible with the shape this function was traced with. Expected shape (1, None, None, 3), but got shape (2, 342, 513, 3).
If you called get_concrete_function, you may need to pass a tf.TensorSpec(..., shape=...) with a less specific shape, having None on axes which can vary.
这表明该模型的固定批量大小为 1。关于如何更改它的任何想法？