class_docstr: Instantiated model of the EntityRulerApproach.
  For usage and examples see the documentation of the main class.
  
  ====================== ======================
  Input Annotation types Output Annotation type
  ====================== ======================
  ``DOCUMENT, TOKEN``    ``CHUNK``
  ====================== ======================
code: def pretrained(name, lang="en", remote_loc=None):
      from sparknlp.pretrained import ResourceDownloader
  
      return ResourceDownloader.downloadModel(
          EntityRulerModel, name, lang, remote_loc
      )
  
file_path: spark-nlp/python/sparknlp/annotator/er/entity_ruler.py
imports: from sparknlp.common import *
label_desc: Use image node_id 2 for calling the EntityRulerModel obj's underlying member method code with example usage: obj.pretrained(name, lang, remote_loc) and returns: ResourceDownloader