Modify the following coding lines to meet the comments given at the end:

class CompactList:

def $\_\_$init$\_\_($self$,$inlist$=[])$:

# inlist$=[]$: Optional argument specifying the initial set of integers. Defaults to an empty list.

sorted$\_$list $=$ sorted$($set$($inlist$))$

# Creates a sorted and unique list from the input list, ensuring non$-$decreasing order.

self.compact$\_$list $=$ self.compress$($sorted$\_$list$)$

# Calls the compress method to create the compact representation and stores it in the compact$\_$list attribute.

Potential Inconsistency:

While the prompt states that inlist should only be considered as $[]$ and not None, the code allows for inlist to be None without explicit handling. This could lead to unexpected behavior if not addressed.

Potential Optimization:

The while end in sorted$\_$list loop can be slightly optimized by using bisect$\_$left to find the next element in the sorted$\_$list that is greater than or equal to end, instead of iterating through all remaining elements.

Edge Case Consideration:

The edge case when the last element in the sorted$\_$list is part of a single$-$element range $($no consecutive integers$)$ is not explicitly handled. The current implementation would skip adding it to the compact$\_$list. You might want to modify the loop or add a final check to ensure all elements are included in the compressed representation.

Missing Functionality:

The code snippet only includes the definition of the CompactList class and its methods. To fully analyze the functionalities and potential inconsistencies, further context is needed, such as the implementation of other methods like insert, delete, contains, etc., and how they interact with the compact$\_$list.