docs: initial emulation speed trying

src/python/boytacean/pyboy.py

@@ -163,8 +163,12 @@ class PyBoy(GameBoy):
     PyBoy compatible class for the GameBoy emulator, should
     be able to be used as a drop-in replacement for PyBoy that
     makes use of Boytacean as the runtime.
+
+    :see: https://github.com/Baekalfen/PyBoy/blob/master/pyboy/pyboy.py
     """
 
+    _emulation_speed: float | None = None
+
     def __init__(
         self,
         gamerom_file,
@@ -215,7 +219,10 @@ def __exit__(self, exc_type, exc_value, traceback):
         self.stop()
 
     def set_emulation_speed(self, speed: float):
-        # @TODO: implement emulation speed control
+        # @TODO: implement emulation speed control, this
+        # should affect how the next_frame method behaves
+        # and handle the speed of the emulation
+        self._emulation_speed = speed
         print("Missing emulation speed control")
 
     def tick(self):