How to use the nfstream.ndpi_bindings.HashIp4pNode function in nfstream

_fields_ = [("val", c_int)]


class AtomicT(Structure):
    _fields_ = [("counter", c_int)]


class TimeT(Structure):
    _fields_ = [("counter", c_longlong)]


class HashIp4pNode(Structure):
    pass


HashIp4pNode._fields_ = [
    ("next", POINTER(HashIp4pNode)),
    ("prev", POINTER(HashIp4pNode)),
    ("lchg", TimeT),
    ("port", c_uint16),
    ("count", c_uint16, 12),
    ("flag", c_uint16, 4),
    ("ip", c_uint32)
]


class HashIp4p(Structure):
    _fields_ = [
        ("top", POINTER(HashIp4pNode)),
        ("lock",SpinlockT),
        ("len", c_size_t)
    ]

class AtomicT(Structure):
    _fields_ = [("counter", c_int)]


class TimeT(Structure):
    _fields_ = [("counter", c_longlong)]


class HashIp4pNode(Structure):
    pass


HashIp4pNode._fields_ = [
    ("next", POINTER(HashIp4pNode)),
    ("prev", POINTER(HashIp4pNode)),
    ("lchg", TimeT),
    ("port", c_uint16),
    ("count", c_uint16, 12),
    ("flag", c_uint16, 4),
    ("ip", c_uint32)
]


class HashIp4p(Structure):
    _fields_ = [
        ("top", POINTER(HashIp4pNode)),
        ("lock",SpinlockT),
        ("len", c_size_t)
    ]