class_docstr: Binary implementation of the Thrift protocol driver.
class_docstr_tok: ["Binary","implementation","of","the","Thrift","protocol","driver","."]
code: def readFieldBegin(self):
      type = self.readByte()
      if type == TType.STOP:
          return (None, type, 0)
      id = self.readI16()
      return (None, type, id)
  
imports: from .TProtocol import TType, TProtocolBase, TProtocolException, TProtocolFactory
  from struct import pack, unpack
label_desc: Use image node_id 28 for calling the TBinaryProtocol obj's underlying member method code with example usage: obj.readFieldBegin() and returns: None,  type,  id, None,  type,  int