average:math
chunk:list
compact:list
count_occurences:list
count_vowels:string
deep_flatten:list
difference:list
factorial:math
gcd:math
lcm:math
max_n:math
min_n:math
shuffle:list
spread:list
zip:list
byte_size:string
capitalize:string
capitalize_every_word:string
decapitalize:string
palindrome:string
is_upper_case:string
is_lower_case:string