Function sourceview5_sys::gtk_source_completion_context_get_bounds

pub unsafe extern "C" fn gtk_source_completion_context_get_bounds(
    self_: *mut GtkSourceCompletionContext, 
    begin: *mut GtkTextIter, 
    end: *mut GtkTextIter
) -> gboolean

This is supported on crate feature v5_0 only.