code: def append(self, n):
      try:
          self.array.append(n)
      except OverflowError:
          self._retype(n)
          self.array.append(n)
  
imports: from array import array
  from whoosh.compat import xrange
  from whoosh.system import emptybytes
  from whoosh.system import pack_byte, unpack_byte
  from whoosh.system import pack_ushort_le, unpack_ushort_le
  from whoosh.system import pack_uint_le, unpack_uint_le
label_desc: Use image node_id 6 for calling the GrowableArray obj's underlying member method code with example usage: obj.append(n) without return types