class_docstr: Abstract class representing a generic Filter factory
  
  Subclasses must implement the method `create_filter`
code: def create_filter(self, initial_detection: np.ndarray):
      pass
  
imports: from abc import ABC, abstractmethod
  import numpy
  from filterpy.kalman import KalmanFilter
label_desc: Use image node_id 1 for calling the FilterFactory obj's underlying member method code with example usage: obj.create_filter(initial_detection) without return types