code: def delete_pipeline_stage(self, pipeline_key, stage_key, sort_by = None):
  		'''Deletes a stage in the pipeline by stage key and pipeline key
  		Args:
  			pipeline_key	key for pipeline
  			stage_key		key for stage
  			sort_by			in desc order by 'creationTimestamp' or 'lastUpdatedTimestamp'
  			returns 		(status code for the GET request, dict of op report) 
  		'''
  		if not (pipeline_key and stage_key):
  			return requests.codes.bad_request, None
  
  		uri = '/'.join([
  						self.api_uri,
  						self.pipelines_suffix,
  						pipeline_key,
  						self.stages_suffix,
  						stage_key
  						])
  		
  		code, data = self._req('delete', uri)
  		
  		return code, datf delete_pipeline_stage(self, pipeline_key, stage_key, sort_by = None):
  		'''Deletes a stage in the pipeline by stage key and pipeline key
  		Args:
  			pipeline_key	key for pipeline
  			stage_key		key for stage
  			sort_by			in desc order by 'creationTimestamp' or 'lastUpdatedTimestamp'
  			returns 		(status code for the GET request, dict of op report) 
  		'''
  		if not (pipeline_key and stage_key):
  			return requests.codes.bad_request, None
  
  		uri = '/'.join([
  						self.api_uri,
  						self.pipelines_suffix,
  						pipeline_key,
  						self.stages_suffix,
  						stage_key
  						])
  		
  		code, data = self._req('delete', uri)
  		
  		return code, data
docs: Deletes a stage in the pipeline by stage key and pipeline key
  		Args:
  			pipeline_key	key for pipeline
  			stage_key		key for stage
  			sort_by			in desc order by 'creationTimestamp' or 'lastUpdatedTimestamp'
  			returns 		(status code for the GET request, dict of op report)