def _write4bits(self, bits):
    if self.rw: bbio.digitalWrite(self.rw, bbio.LOW)
    for bit in range(4):
      bbio.digitalWrite(self.data_pins[bit], (bits>>bit) & 0x1)
    bbio.digitalWrite(self.enable, bbio.HIGH)
    bbio.digitalWrite(self.enable, bbio.LOW)
overwrite any deltas into the baseline set that would have changed our
dataset/ETHPy150Open graycatlabs/PyBBIO/bbio/libraries/LiquidCrystal/LiquidCrystal.py/LiquidCrystal._write4bits--crossover with--dataset/ETHPy150Open quantopian/zipline/zipline/pipeline/loaders/blaze/core.py/overwrite_novel_deltas