how can we set custom detents for sheetPresentationController in iOS 15

Question

from iOS 16 we can set custom detents in sheetPresentationController but is there any way or alternative to archive same thing in iOS 15 as well.

  if let sheet = objVC?.sheetPresentationController {
               
  if #available(iOS 16.0, *) {
     sheet.detents = [
     .custom { _ in
      return 550
     }
   ]
    } else {
       sheet.detents = [.medium(),.large()]
    }
       sheet.largestUndimmedDetentIdentifier = .medium
       sheet.prefersGrabberVisible = true
       sheet.preferredCornerRadius = 22
       sheet.prefersScrollingExpandsWhenScrolledToEdge = true
       sheet.prefersEdgeAttachedInCompactHeight = true
       sheet.widthFollowsPreferredContentSizeWhenEdgeAttached = true
       sheet.selectedDetentIdentifier = .medium        
   }