how to get all work sheet names and cell details

Question

Hello, i have the existing script in my workbook:
I would like to get all the worksheet names (instead of specifying as ive done), and include it in the batch details output. Thank you

function main(workbook: ExcelScript.Workbook) {
  const ws = workbook.getWorksheet('Sheet1')

  const starttime = ws.getRange('D95').getValue()
  const endtime = ws.getRange('E95').getValue()



  const batchDetails = {
    start: starttime,
    end: endtime
  }
  return batchDetails

}