The resource the dialog shows when opened.
A human-readable string for the save button.
A set of file filters that are used by the dialog. Each entry is a human-readable label, like "TypeScript", and an array of extensions, for example:
{
'Images': ['png', 'jpg'],
'TypeScript': ['ts', 'tsx']
}
Dialog title.
This parameter might be ignored, as not all operating systems display a title on save dialogs (for example, macOS).
Options to configure the behaviour of a file save dialog.