docstr: Gets unique reference name for identification.
  
  Returns
  -------
  str
      Unique reference name for identification
docstr_tok: ["Gets","unique","reference","name","for","identification",".","Returns","--","--","--","-","str","Unique","reference","name","for","identification"]
code: def getStorageRef(self):
      """Gets unique reference name for identification.
  
      Returns
      -------
      str
          Unique reference name for identification
      """
      return self.getOrDefault("storageRef")
  
imports: from pyspark.ml.param import Param, Params, TypeConverters
  from sparknlp.common.utils import ExternalResource
  from sparknlp.common.properties import HasCaseSensitiveProperties
  import sparknlp.internal
label_desc: Use image node_id 2 for calling the HasStorageRef obj's underlying member method code with example usage: obj.getStorageRef() and returns: self