code: public static String resolveClientIds(FacesContext context, UIComponent source, String expressions) {
  
          return resolveClientIds(context, source, expressions, SearchExpressionHint.NONE);
      }
docs: Resolves a list of {@link UIComponent} clientIds and/or passtrough expressions for the given expression or expressions.
  
  @param context The {@link FacesContext}.
  @param source The source component. E.g. a button.
  @param expressions The search expressions.
  @return A {@link List} with resolved clientIds and/or passtrough expression (like PFS, widgetVar).