ml client has no method _bulk_body (elastic#962)

* ml client has not method _bulk_body Need to access the _bulk_body method from the client object closes: elastic#959 * update changelog too

Author: fxdgear

Changelog.rst

@@ -5,6 +5,7 @@ Changelog
 7.1.0 (dev)
 -----------
  * Add connection parameter for Elastic Cloud cloud_id.
+ * ML client uses client object for _bulk_body requests
 
 7.0.1 (2019-05019)
 -----------

elasticsearch/client/xpack/ml.py

@@ -224,7 +224,7 @@ def find_file_structure(self, body, params=None):
  "POST",
  "/_ml/find_file_structure",
  params=params,
- body=self._bulk_body(body),
+ body=self.client._bulk_body(body),
  )
 
  @query_params("advance_time", "calc_interim", "end", "skip_time", "start")
@@ -634,7 +634,7 @@ def post_data(self, job_id, body, params=None):
  "POST",
  _make_path("_ml", "anomaly_detectors", job_id, "_data"),
  params=params,
- body=self._bulk_body(body),
+ body=self.client._bulk_body(body),
  )
 
  @query_params()