message: test: doc: improve doc for `from_hex` helper (mention `to_hex` alternative)
diff: @@ -190,8 +190,12 @@ def ser_string_vector(l):
  return r
  -# Deserialize from a hex string representation (eg from RPC)
  def from_hex(obj, hex_string):
  + """Deserialize from a hex string representation (e.g. from RPC)
  +
  + Note that there is no complementary helper like e.g. `to_hex` for the
  + inverse operation. To serialize a message object to a hex string, simply
  + use obj.serialize().hex()"""
  obj.deserialize(BytesIO(hex_str_to_bytes(hex_string)))
  return obj
  