Work around "Missing named argument" errors.

Something about the Pydantic upgrade was interacting poorly with Mypy. Despite these fields having defaults, Mypy was raising errors when the class was instantiated without them. Somehow, declaring the defaults as keyword arguments instead of positional arguments fixes it.

Also fix a typo, `descript` -> `description`.

Author: SyntaxColoring

hardware/opentrons_hardware/drivers/can_bus/settings.py

@@ -50,21 +50,21 @@ class DriverSettings(BaseSettings):
     """Settings for driver building."""
 
     interface: str = Field(
-        DEFAULT_INTERFACE,
+        default=DEFAULT_INTERFACE,
         description=f"Can either be {OPENTRONS_INTERFACE} for simple socket "
         f"or a python can interface.",
     )
     bit_rate: int = Field(
-        DEFAULT_BITRATE,
+        default=DEFAULT_BITRATE,
         description=f"Bit rate. Not applicable to {OPENTRONS_INTERFACE} interface.",
     )
-    channel: str = Field(DEFAULT_CHANNEL, description="The SocketCan channel.")
+    channel: str = Field(default=DEFAULT_CHANNEL, description="The SocketCan channel.")
 
-    host: str = Field(DEFAULT_HOST, description=f"{OPENTRONS_INTERFACE} only.")
-    port: int = Field(DEFAULT_PORT, description=f"{OPENTRONS_INTERFACE} only.")
-    fcan_clock: int = Field(DEFAULT_FDCAN_CLK, description="pcan only.")
-    sample_rate: float = Field(DEFAULT_SAMPLE_RATE, description="pcan only.")
-    jump_width: int = Field(DEFAULT_JUMP_WIDTH_SEG, descript="pcan only.")
+    host: str = Field(default=DEFAULT_HOST, description=f"{OPENTRONS_INTERFACE} only.")
+    port: int = Field(default=DEFAULT_PORT, description=f"{OPENTRONS_INTERFACE} only.")
+    fcan_clock: int = Field(default=DEFAULT_FDCAN_CLK, description="pcan only.")
+    sample_rate: float = Field(default=DEFAULT_SAMPLE_RATE, description="pcan only.")
+    jump_width: int = Field(default=DEFAULT_JUMP_WIDTH_SEG, description="pcan only.")
 
     class Config:  # noqa: D106
         env_prefix = "OT3_CAN_DRIVER_"