Elasticsearch + python + pipeline

from ELa import Ela

class Client:


    def __init__(self):

        self._elaClinet = Ela.retElanode()
        self._targetDir = ""

    def insrtDoc(self):

        d = {"data":"aGVsbG8="}

        self._elaClinet.index(index="x_index", pipeline="attachment", body=d)

o = Client()
o.insrtDoc()