FormatBytes outputs the given number of bytes "s" as a human-readable string, rounding to the nearest half within .01.

FormatBytesUnit outputs the given number of bytes "s" as a quantity of the given units "u" to the nearest half within .01.

ParseBytes parses a given human-readable bytes or ibytes string into a number of bytes, or an error if the string was unable to be parsed.

ParseByteUnit returns the number of bytes in a given unit of storage, or an error, if that unit is unrecognized.