[Python] Python: how to use typeguard for numpy structured arrays?

I want to implement functions that act on specific numpy structured arrays, but typeguard doesn't seem to work properly:

import numpy as np
from typeguard import typechecked

mytype2 = np.dtype([("type", int), ("pos", float, 2)])
mytype3 = np.dtype([("type", int), ("pos", float, 3)])

@typechecked
def process(data: mytype3) -> None: # Variable not allowed in type expression Pylance
print(data)

data = np.array([(1, [2, 3])], dtype=mytype2)
process(data)


That works fine, when it should raise an error.

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