how to pass the dynamic date within like (1/1/2020 , 1/3/2020)  in workbook export query in the script.
// Query definition
					var objQ = query.create({type: "transaction"});
					// Conditions
					  objQ.condition = objQ.and(
					  objQ.createCondition({"operator":"IS","values":[true],"fieldId":"posting"}),
					  objQ.createCondition({"operator":"WITHIN","values":[{"dateId":"LM"}],"fieldId":"trandate"}),
					  objQ.createCondition({"operator":"ANY_OF","values":["COGS","Expense","Income","OthExpense","OthIncome"],"fieldId":"transactionlines.accountingimpact.account.accttype"}),
					  objQ.createCondition({"operator":"ANY_OF","values":["1"],"fieldId":"transactionlines.accountingimpact.account.custrecord_cost_head"}));