Inclusion of a Shuffled String Into another String

The function is given two strings s1 and s2. Determine if one of the permutations of characters of s1 is a substring of s2, return True / False.

Examples

check_inclusion("ab", "innokodakademijabooo") ➞ True
# "ab" is in s2.

check_inclusion("ab", "edaoboat") ➞ False
# neither "ab" or "ba" is in s2.

check_inclusion("adc", "dcda") ➞ True
# "cda" is a permutation of "adc" and it is in s2.

check_inclusion("sgyuws", "oldqwqdmlvsguswyfbj") ➞ True
# "sguswy" is a permutation of s1 and it is in s2.

Notes

All characters in both strings are lowercase letters.