human
Can you show me a Python function to achieve similarity on chunks of a large list of lists.
assistant
Here is a Python function to achieve similarity on chunks of a large list of lists

import numpy as np

def jaccard_similarity(list1, list2):
    """
    Calculate the jaccard similarity between two lists.
    """
    return len(list1 & list2) / len(list1 | list2)

# Enter the matrix
matrix = np.array([[1,2,3],[4,5,6],[7,8,9]])

# Calling the function
print((jaccard_similarity(matrix, matrix)))

#Example Output
# 1.0

#Remember to inspect code for bugs.