fix

src/spikeinterface_pipelines/preprocessing/params.py

@@ -1,5 +1,5 @@
 from pydantic import BaseModel, Field
-from typing import Optional, Union, List
+from typing import Optional, Union, List, Literal
 from enum import Enum
 
 
@@ -44,7 +44,7 @@ class HighpassSpatialFilter(BaseModel):
 # Motion correction ---------------------------------------------------------------
 class MCDetectKwargs(BaseModel):
     method: str = Field(default="locally_exclusive", description="The method for peak detection.")
-    peak_sign: Literal["pos", "neg", "both] = Field(default="neg", description="The peak sign to detect peaks.")
+    peak_sign: Literal["pos", "neg", "both"] = Field(default="neg", description="The peak sign to detect peaks.")
     detect_threshold: float = Field(default=8.0, description="The detection threshold in MAD units.")
     exclude_sweep_ms: float = Field(default=0.1, description="The time sweep to exclude for time de-duplication.")
     radius_um: float = Field(default=50.0, description="The radius in um for channel de-duplication.")