code: def serialize_header(self, pyobj, typecode=None, **kw):
          '''Serialize a Python object in SOAP-ENV:Header, make
          sure everything in Header unique (no #href).  Must call
          serialize first to create a document.
  
          Parameters: 
              pyobjs -- instances to serialize in SOAP Header
              typecode -- default typecode
          '''
          kw['unique'] = True
          soap_env = _reserved_ns['SOAP-ENV']
          #header = self.dom.getElement(soap_env, 'Header')
          header = self._header
          if header is None:
              header = self._header = self.dom.createAppendElement(soap_env, 
                                                                   'Header')
  
          typecode = getattr(pyobj, 'typecode', typecode)
          if typecode is None:
              raise RuntimeError(
                     'typecode is required to serialize pyobj in header')
  
          helt = typecode.serialize(header, self, pyobj, **kwf serialize_header(self, pyobj, typecode=None, **kw):
          '''Serialize a Python object in SOAP-ENV:Header, make
          sure everything in Header unique (no #href).  Must call
          serialize first to create a document.
  
          Parameters: 
              pyobjs -- instances to serialize in SOAP Header
              typecode -- default typecode
          '''
          kw['unique'] = True
          soap_env = _reserved_ns['SOAP-ENV']
          #header = self.dom.getElement(soap_env, 'Header')
          header = self._header
          if header is None:
              header = self._header = self.dom.createAppendElement(soap_env, 
                                                                   'Header')
  
          typecode = getattr(pyobj, 'typecode', typecode)
          if typecode is None:
              raise RuntimeError(
                     'typecode is required to serialize pyobj in header')
  
          helt = typecode.serialize(header, self, pyobj, **kw)
docs: Serialize a Python object in SOAP-ENV:Header, make
          sure everything in Header unique (no #href).  Must call
          serialize first to create a document.
  
          Parameters: 
              pyobjs -- instances to serialize in SOAP Header
              typecode -- default typecode