wire = Wire(from_bytes=b'')
wire.write(b'test')
wire.write_word(0x1234)
wire.write_fmt("I",0x31337)
wire.write_fmt("BBII", 1,2,33,44)
data = wire.dump()
  

wire = Wire(from_bytes=b'test223333')
wire.readn(4)
wire.read_word()
wire.read_fmt("BBBB")

def _pre_read_hook(*a,**kw):
  n = a[0]
  print(f"I will read {n} bytes")
  return None

wire = Wire(from_bytes=b'test123')
wire.install_hook(wire.read, pre=_pre_read_hook)
wire.readn(4)

wire = Wire(from_bytes=b'test112233')
r = StructureReader(wire)
r.will_read("test_string").readn(4)
r.will_read("items")
with r.start_list():
  wire.read_word()
  wire.read_dword()
 #...
 print(json.dumps(r.get_struct()))