docstr: Sets Learning Rate, by default 0.005
  
  Parameters
  ----------
  v : float
      Learning Rate
code: def setLr(self, v):
      """Sets Learning Rate, by default 0.005
  
      Parameters
      ----------
      v : float
          Learning Rate
      """
      self._set(lr=v)
      return self
  
file_path: spark-nlp/python/sparknlp/annotator/param/classifier_encoder.py
imports: from sparknlp.common import *
  from sparknlp.internal import ParamsGettersSetters
label_desc: Use image node_id 2 for calling the ClassifierEncoder obj's underlying member method code with example usage: obj.setLr(v) and returns: self