ultralytics 8.0.81 single-line docstring updates (#2061)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ultralytics/tracker/trackers/basetrack.py

@@ -6,6 +6,8 @@ import numpy as np
 
 
 class TrackState:
+    """Enumeration of possible object tracking states."""
+
     New = 0
     Tracked = 1
     Lost = 2
@@ -13,6 +15,8 @@ class TrackState:
 
 
 class BaseTrack:
+    """Base class for object tracking, handling basic track attributes and operations."""
+
     _count = 0
 
     track_id = 0
@@ -32,28 +36,36 @@ class BaseTrack:
 
     @property
     def end_frame(self):
+        """Return the last frame ID of the track."""
         return self.frame_id
 
     @staticmethod
     def next_id():
+        """Increment and return the global track ID counter."""
         BaseTrack._count += 1
         return BaseTrack._count
 
     def activate(self, *args):
+        """Activate the track with the provided arguments."""
         raise NotImplementedError
 
     def predict(self):
+        """Predict the next state of the track."""
         raise NotImplementedError
 
     def update(self, *args, **kwargs):
+        """Update the track with new observations."""
         raise NotImplementedError
 
     def mark_lost(self):
+        """Mark the track as lost."""
         self.state = TrackState.Lost
 
     def mark_removed(self):
+        """Mark the track as removed."""
         self.state = TrackState.Removed
 
     @staticmethod
     def reset_id():
+        """Reset the global track ID counter."""
         BaseTrack._count = 0