#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "(close_app|open_app)"
Local $sString = "https://app.twinpush.com/api/v2/apps/f1ad9f0348ea3149/devices/147680904a9a9f66/open_app" & @CRLF & _
"" & @CRLF & _
""
Local $sSubst = ""
Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst)
MsgBox($MB_SYSTEMMODAL, "Result", $sResult)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm