null, "presupuesto_id" => null, "tarifa_preimpresion_id" => null, "precio_total" => null, "margen" => null, "created_at" => null, "updated_at" => null, ]; protected $casts = [ "presupuesto_id" => "int", "tarifa_preimpresion_id" => "int", "precio_total" => "float", "margen" => "float", ]; }