-----Description----- 
This task requires writing a Lean 4 method that determines whether a given integer is divisible by 11. The method should return true if the number is divisible by 11 and false otherwise.

-----Input-----
The input consists of:
n: An integer to check for divisibility by 11.

-----Output-----
The output is a Boolean value:
Returns true if the input number is divisible by 11.
Returns false if the input number is not divisible by 11.