issubset(other) set <= other Test whether every element in the set is in other.

int.bit_length() Return the number of bits necessary to represent an integer in binary, excluding the sign and leading zeros:

int.to_bytes(length, byteorder, *, signed=False) Return an array of bytes representing an integer.

str.split(sep=None, maxsplit=-1) Return a list of the words in the string, using sep as the delimiter string. If maxsplit

str.istitle() Return true if the string is a titlecased string and there is at least one character, for example uppercase characters

bytes.splitlines(keepends=False) bytearray.splitlines(keepends=False) Return a list of the lines in the binary sequence

bytearray.join(iterable) Return a bytes or bytearray object which is the concatenation of the binary data sequences in the

str.startswith(prefix[, start[, end]]) Return True if string starts with the prefix, otherwise return

keys() Return a new view of the dictionary’s keys. See the documentation of view objects.

bytes.swapcase() bytearray.swapcase() Return a copy of the sequence with all the lowercase ASCII characters converted