Our fruit guy has a bag of fruit (represented as an array of strings) where some fruits are rotten. He wants to replace all the rotten pieces of fruit with fresh ones. For example, given `["apple","rottenBanana","apple"]` the replaced array should be `["apple","banana","apple"]`. Your task is to implement a method that accepts an array of strings containing fruits should returns an array of strings where all the rotten fruits are replaced by good ones. 
### Notes
- If the array is null/nil/None or empty you should return empty array (`[]`).
- The rotten fruit name will be in this camelcase (`rottenFruit`).
- The returned array should be in lowercase.
def remove_rotten(bag_of_fruits):
    if bag_of_fruits is None:
        return []

    clean_bag = []
  
    for fruit in bag_of_fruits:
        if "rotten" in fruit:
            clean_bag.append(fruit.replace("rotten","").lower())
        else:
            clean_bag.append(fruit)
  
    return clean_bag
def remove_rotten(bag_of_fruits):
    if bag_of_fruits is None:
        return []

    clean_bag = []
  
    for fruit in bag_of_fruits:
        if "rotten" in fruit:
            clean_bag.append(fruit.replace("rotten","").lower())
        else:
            clean_bag.append(fruit)
  
    return clean_bag