adafruit-circuitpython-typing

from adafruit_circuitpython_typing import BlockDevice, AnyDisplay from typing import Protocol # Define a mock BlockDevice for demonstration purposes class MockBlockDevice(Protocol): def readblocks(self, start_block: int, buf: bytearray) -> None: print(f"Reading block {start_block}") def writeblocks(self, start_block: int, buf: bytearray) -> None: print(f"Writing block {start_block}") def ioctl(self, operation: int, arg: int) -> int: print(f"IOCTL operation {operation} with arg {arg}") return 0 # A function that expects any BlockDevice def format_device(device: BlockDevice) -> None: print(f"Formatting a device of type: {type(device).__name__}") device.writeblocks(0, bytearray(512)) # A function that expects any display type def initialize_display(display: AnyDisplay) -> None: print(f"Initializing display of type: {type(display).__name__}") # In a real scenario, this would call display methods like show(), fill(), etc. # Example usage: my_sd_card = MockBlockDevice() format_device(my_sd_card) # A mock display object (in reality, it would be from a CircuitPython display driver) class MockDisplay: def show(self) -> None: pass def fill(self, color: int) -> None: pass my_oled_display = MockDisplay() initialize_display(my_oled_display) print("Type hints used successfully for static analysis.")