providers) and isset($this->providers[$name]) and $this->providers[$name] === $provider) { return $this; } $this->providers[$name] = $provider; return $this; } public function getProvider(string $name): Provider { return $this->providers[$name]; } public function getUF(DateTimeInterface $dateTime): float { try { return $this->getProvider('uf')->get(MiIndicador::UF, $dateTime); } catch (EmptyResponse) { return 0; } } public function getIPC(DateTimeInterface $dateTime): float { try { return $this->getProvider('ipc')->get(MiIndicador::IPC, $dateTime); } catch (EmptyResponse) { return 0; } } }