import network

from block import GENESIS_BLOCK
from helper import calculate_new_bits
from network import (
    NetworkEnvelope,
    VersionMessage,
)
---
exercise1:
message_hex = 'f9beb4d976657261636b000000000000000000005df6e0e2'

# skonwertuj na postać binarną
# Sprawdź bajty od 4 do 16

---
exercise2:network:NetworkEnvelopeTest:test_parse
---
exercise3:network:NetworkEnvelopeTest:test_serialize
---
exercise4:network:VersionMessageTest:test_serialize
---
exercise5:network:SimpleNodeTest:test_handshake
---
exercise6:network:GetHeadersMessageTest:test_serialize
---
example1

