old_contents: import sys
  
  from steel.common import args
  from steel import byte
  
  __all__ = ['Structure']
  
  
  class Structure(byte.Structure):
      def __init__(self, *args, **kwargs):
          super(Structure, self).__init__(*args, **kwargs)
          self._bits_left = 0
          self._bit_buffer = 0
  
      def read(self, size=None):
          bit_buffer = self._bit_buffer
          if size > self._bits_left:
              # Read more bytes from the file
              read_size = int(((size - self._bits_left) + 7) / 8)
              field = byte.Integer(size=read_size)
              bytes = self._file.read(read_size)
              value = field.decode(bytes)
              bit_buffer = (bit_buffer << (read_size * 8)) | value
              self._bits_left += read_size * 8
          self._bits_left -= size
          bits = bit_buffer >> self._bits_left
          self._bit_buffer = bit_buffer & (1 << self._bits_left) - 1
          return bits
  
      def get_raw_bytes(self):
          output = bytearray()
          bits_read = 0
          byte = 0
          for name, field in self.__class__._fields.items():
              if name not in self._raw_values:
                  setattr(self, name, getattr(self, name))
              bits_read += field.size
              bits = self._raw_values[name]
              byte = (byte << field.size) + bits
              while bits_read >= 8:
                  byte >>= 8
                  output.append(byte & 0xFF)
                  bits_read -= 8
          return bytes(output)
  
  
  
new_contents: import sys
  
  from steel import base, fields
  
  __all__ = ['Structure']
  
  
  class Structure(base.Structure):
      def __init__(self, *args, **kwargs):
          super(Structure, self).__init__(*args, **kwargs)
          self._bits_left = 0
          self._bit_buffer = 0
  
      def read(self, size=None):
          bit_buffer = self._bit_buffer
          if size > self._bits_left:
              # Read more bytes from the file
              read_size = int(((size - self._bits_left) + 7) / 8)
              field = fields.Integer(size=read_size)
              bytes = self._file.read(read_size)
              value = field.decode(bytes)
              bit_buffer = (bit_buffer << (read_size * 8)) | value
              self._bits_left += read_size * 8
          self._bits_left -= size
          bits = bit_buffer >> self._bits_left
          self._bit_buffer = bit_buffer & (1 << self._bits_left) - 1
          return bits
  
      def get_raw_bytes(self):
          output = bytearray()
          bits_read = 0
          byte = 0
          for name, field in self.__class__._fields.items():
              if name not in self._raw_values:
                  setattr(self, name, getattr(self, name))
              bits_read += field.size
              bits = self._raw_values[name]
              byte = (byte << field.size) + bits
              while bits_read >= 8:
                  byte >>= 8
                  output.append(byte & 0xFF)
                  bits_read -= 8
          return bytes(output)
  
  
  
subject: Update some additional references in the bits module