src/Client.php
public function account($segment, array $parameters=[]) {
        $baseUrl = $this->accountUrl;
        return $this->nonPublicRequest($baseUrl, $segment, $parameters);
    }
public function account($segment, array $parameters=[]) {
        $baseUrl = $this->accountUrl;
        return $this->nonPublicRequest($baseUrl, $segment, $parameters);
    }
Execute an account API request

@param $segment
@param array $parameters
@return array