#set($resourceid = $util.defaultIfNullOrBlank($ctx.args.resourceid, $ctx.source.resourceid))
        {
          "version" : "2018-05-29",
          "operation" : "Query",
          "query" : {
              "expression": "resourceid = :resourceid",
              "expressionValues" : {
                  ":resourceid" : $util.dynamodb.toDynamoDBJson($resourceid)
              }
          },
          "index": "bookingsByResourceByTimeGSI"
        }