bytearray.zfill(width) Return a copy of the sequence left filled with ASCII b'0' digits to make a sequence of length
bytes.rstrip([chars]) bytearray.rstrip([chars]) Return a copy of the sequence with specified trailing bytes removed
bytearray.lower() Return a copy of the sequence with all the uppercase ASCII characters converted to their corresponding lowercase
bytes.capitalize() bytearray.capitalize() Return a copy of the sequence with each byte interpreted as an ASCII character
setdefault(key[, default]) If key is in the dictionary, return its value. If not, insert key with a value
values() Return a new view of the dictionary’s values. See the documentation of view objects.
tolist() Return the data in the buffer as a list of elements.
str.isalnum() Return true if all characters in the string are alphanumeric and there is at least one character, false otherwise
str.isdigit() Return true if all characters in the string are digits and there is at least one character, false otherwise. Digits
str.isupper() Return true if all cased characters [4] in the string are uppercase and there is at least one cased character
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