Naming convention

InputOutput.sol

pragma solidity 0.8.21;

library InputOutput {

    function _finalize(
        Context memory _context, // - input argument
        uint64[4] memory _output_ // - input argument and also output of the function
    ) internal view {
        // tx.members
        uint256 now_ = block.timestamp; // local var

        // add any uncounted bytes
        _context.t += _context.c;

        // compress with finalization flag
        _compress(_context, true);

        // flip little to big endian and store in output buffer
        for (uint256 i = 0; i < _context.digestSize / 8; i++) {
            _output_[i] = _getWords(_context.h[i]);
        }

        // properly pad output if it doesn't fill a full word
        if (_context.digestSize < 32) {
            _output_[_context.digestSize / 8] = _shiftRight(
                _toLittleEndian(_context.h[_context.digestSize / 8]),
                64 - 8 * (_context.digestSize % 8)
            );
        }
    }
    
}