Problem

Given a list of data values, including some missing or null values represented by None, implement a function that returns a cleaned list. The cleaned list should remove all None values, and if the original list is empty or contains only None, return an empty list.

Examples

Example 1:

Input: data = [1, 2, None, 4, None, 5]
Output: [1, 2, 4, 5]

Example 2:

Input: data = [None, None, None]
Output: []

Constraints

• The input list can have a length between 0 and 10^5.
• The list can contain integers, floats, or None values.