system/HTTP/CURLRequest.php
protected function applyBody(array $curl_options = []): array
	{
		if (! empty($this->body))
		{
			$curl_options[CURLOPT_POSTFIELDS] = (string) $this->getBody();
		}

		return $curl_options;
	}
protected function applyBody(array $curl_options = []): array
	{
		if (! empty($this->body))
		{
			$curl_options[CURLOPT_POSTFIELDS] = (string) $this->getBody();
		}

		return $curl_options;
	}
Apply body

@param array $curl_options

@return array