Add Retransmition object [sample]

core/src/all_modules.py

@@ -231,6 +231,8 @@ trezor.wire.thp.pairing_context
 import trezor.wire.thp.pairing_context
 trezor.wire.thp.received_message_handler
 import trezor.wire.thp.received_message_handler
+trezor.wire.thp.retransmission
+import trezor.wire.thp.retransmission
 trezor.wire.thp.session_context
 import trezor.wire.thp.session_context
 trezor.wire.thp.session_manager

core/src/trezor/wire/thp/retransmission.py

@@ -0,0 +1,23 @@
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from trezor.wire.thp import ChannelContext
+
+
+class Retransmission:
+
+    def __init__(
+        self, channel_context: ChannelContext, ctrl_byte: int, payload: memoryview
+    ) -> None:
+        self.channel_context: ChannelContext = channel_context
+        self.ctrl_byte: int = ctrl_byte
+        self.payload: memoryview = payload
+
+    def start(self):
+        pass
+
+    def stop(self):
+        pass
+
+    def change_ctrl_byte(self, ctrl_byte: int) -> None:
+        self.ctrl_byte = ctrl_byte