[API] Updates security.get_stats

Adds error_trace, filter_path, human and pretty parameters

Author: picandocodigo

elasticsearch-api/lib/elasticsearch/api/actions/security/get_stats.rb

@@ -22,8 +22,20 @@ module Elasticsearch
   module API
     module Security
       module Actions
-        # Get security statistics for all nodes
+        # Get security stats.
+        # Gather security usage statistics from all node(s) within the cluster.
         #
+        # @option arguments [Boolean] :error_trace When set to `true` Elasticsearch will include the full stack trace of errors
+        #  when they occur.
+        # @option arguments [String, Array<String>] :filter_path Comma-separated list of filters in dot notation which reduce the response
+        #  returned by Elasticsearch.
+        # @option arguments [Boolean] :human When set to `true` will return statistics in a format suitable for humans.
+        #  For example `"exists_time": "1h"` for humans and
+        #  `"exists_time_in_millis": 3600000` for computers. When disabled the human
+        #  readable values will be omitted. This makes sense for responses being consumed
+        #  only by machines.
+        # @option arguments [Boolean] :pretty If set to `true` the returned JSON will be "pretty-formatted". Only use
+        #  this option for debugging only.
         # @option arguments [Hash] :headers Custom HTTP headers
         #
         # @see https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-security-get-stats
@@ -38,7 +50,7 @@ def get_stats(arguments = {})
 
           method = Elasticsearch::API::HTTP_GET
           path   = '_security/stats'
-          params = {}
+          params = Utils.process_params(arguments)
 
           Elasticsearch::API::Response.new(
             perform_request(method, path, params, body, headers, request_opts)