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Python functions to stack 2d arrays in 2d array.
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Here is a Python function to stack 2d arrays in a Python program

import numpy as np

def stack_2d_arrays(*args):
    """ Stack 2d arrays in """
    return np.stack(args)

# Enter the 2d arrays
a = np.array([[1, 2], [3, 4]])
b = np.array([[5, 6], [7, 8]])

# Calling the function
print((stack_2d_arrays(a, b)))

#Example Output
# [[[1 2]
#   [3 4]]
#  [[5 6]
#   [7 8]]]

#Remember to inspect code for bugs.