human
list filter all the empty element.
assistant
Here is a Python function to return a list filter for all empty elements

# Enter the list
list_of_list = [[1, 2, 3], [], [4, 5]]

# Calling the function
print((list_filter(list_of_list)))

#Example Output
# [[1, 2, 3], [4, 5]]

#Remember to inspect code for bugs.