new_contents: from elasticsearch import Elasticsearch, TransportError
  from utility.tools import ELASTICSEARCH_HOST, ELASTICSEARCH_PORT
  
  es = Elasticsearch([{
      "host": ELASTICSEARCH_HOST
      , "port": ELASTICSEARCH_PORT
  }]) 
  
  def get_user_by_unique_column(column_name, column_value):
      user_details = None
      try:
          response = es.search(
              index = "users"
              , doc_type = "local"
              , body = { 
                  "query": { "match": { column_name: column_value } } 
              })
          if len(response["hits"]["hits"]) > 0:
              user_details = response["hits"]["hits"][0]["_source"]
      except TransportError as te: 
          pass
      return user_details
  
subject: Add elasticsearch_tools module