code: def send(self, msg):
      # l = len(ppc.b_(msg)) if (self.has_wb or self.w.mode == 'wb') else len(ppc.str_(msg))
      # open('/tmp/pp.debug', 'a+').write(repr(('s', l, self.w, msg))+'\n')
      if self.has_wb or self.w.mode == "wb":
          msg = ppc.b_(msg)
          self.wb.write(struct.pack("!Q", len(msg)))
          self.w.flush()
      else:  # HACK: following may be > 8 bytes, needed for len(msg) >= 256
          msg = ppc.str_(msg)
          self.wb.write(ppc.str_(struct.pack("!Q", len(msg))))
          self.w.flush()
      self.wb.write(msg)
      self.w.flush()
  
imports: import logging
  import os
  import socket
  import struct
  import hashlib
  from .None import common
label_desc: Use image node_id 2 for calling the PipeTransport obj's underlying member method code with example usage: obj.send(msg) without return types