src/Http/Requests/JsonApiRequest.php
public function getParameters(): EncodingParametersInterface
    {
        if ($this->parameters) {
            return $this->parameters;
        }

        return $this->parameters = $this->container->make(EncodingParametersInterface::class);
    }
public function getParameters(): EncodingParametersInterface
    {
        if ($this->parameters) {
            return $this->parameters;
        }

        return $this->parameters = $this->container->make(EncodingParametersInterface::class);
    }
Get the encoding parameters from the request.

@return EncodingParametersInterface