[Python] How to create input layer in keras for class label also?

I wanted the class label information for my model to build a custom loss function similar to arcface how do I get input values of shape(1) in keras

X_input = Input(InputShape)
label = Input(shape=(1,))
#there are some more layers in between
model = Model(inputs = [X_input,label], outputs = X, name='MNIST')
newModelArc(InputShape=(108,108,3),number_class=5749)


I get this error

Traceback (most recent call last):
File "D:\FaceRecognition\ClassifyModel.py", line 209, in <module>
FRmodel = newModelArc(InputShape=(108,108,3),number_class=5749)
File "D:\FaceRecognition\ClassifyModel.py", line 203, in newModelArc
model = Model(inputs = [X_input,label], outputs = X, name='MNIST')
File "C:\Program Files\Python37\lib\site-packages\keras\legacy\interfaces.py", line 91, in wrapper
return func(*args, **kwargs)
File "C:\Program Files\Python37\lib\site-packages\keras\engine\network.py", line 94, in __init__
self._init_graph_network(*args, **kwargs)
File "C:\Program Files\Python37\lib\site-packages\keras\engine\network.py", line 241, in _init_graph_network
self.inputs, self.outputs)
File "C:\Program Files\Python37\lib\site-packages\keras\engine\network.py", line 1434, in _map_graph_network
tensor_index=tensor_index)
File "C:\Program Files\Python37\lib\site-packages\keras\engine\network.py", line 1421, in build_map
node_index, tensor_index)
File "C:\Program Files\Python37\lib\site-packages\keras\engine\network.py", line 1393, in build_map
node = layer._inbound_nodes[node_index]
AttributeError: 'NoneType' object has no attribute '_inbound_nodes'
[Finished in 6.5s]

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