C# equivalent of Python's struct.pack and sum?

Is there any function equivalent to Python's struct.pack and struck.unpack in C# that allows me to pack and unpack values like this?

import socket
from struct import *
from collections import namedtuple
if __name__ == "__main__":
    # set up params
    command_type = 1
    command_class = 5
    command_code = 0x14
    arg0 = 0
    arg1 = 0
    # encode params
    packed_message = pack('