\# Complete the function below. \# \# w1 and w2 are strings. You can assume that either len(w2) == len(w1) or \# len(w2) == len(w1) +1 or len(w2) == len(w1) 1. \# SPECIFICATION \# The function returns True if w2 is obtained from w1 by (i) replacing one character \# in w1 by another character or (ii) inserting a charecter into w1 or (iii) deleting \# a charecter from w1; otherwise the function returns False. \# Note: The replacement character may be identical to the character being replaced. \# Note: \# EXAMPLES \# \# isclose("hello", "hell") returns True \# isclose("hello", "cello") returns True \# isclose("hello", "Hello") returns True \# isclose("hello", "Helloo") returns False \# isclose("hello", "helloo") returns True \# isclose("test"", "rest") returns True \# isclose("", "x") returns True