docstr: StreamQuery - QueryParameterGenerator - generate - utctimestamp_minus1hour
docstr_tok: ["StreamQuery","-","QueryParameterGenerator","-","generate","-","utctimestamp_minus1hour"]
code: def test_generate_utctimestamp_minus1hour(self):
      """StreamQuery - QueryParameterGenerator - generate - utctimestamp_minus1hour"""
      assert_equals(
          self._generator.generate("utctimestamp_minus1hour"),
          "1546300861",
      )
  
imports: from datetime import datetime, timezone
  from mock import MagicMock, patch
  from nose.tools import assert_equals, assert_false, assert_true
  from streamalert.scheduled_queries.query_packs.manager import QueryPack, QueryPacksManager, QueryPackExecutionContext, QueryPacksManagerFactory
  from streamalert.scheduled_queries.query_packs.parameters import QueryParameterGenerator
label_desc: Use image node_id 5 for calling the TestQueryParameterGenerator obj's underlying member method code with example usage: obj.test_generate_utctimestamp_minus1hour() without return types