/**
	 * Create an embedding of a given input.
	 *  API Ref: https://platform.openai.com/docs/api-reference/embeddings
	 *
	 * @param   string       $model     The ID of the model to use.
	 * @param   mixed        $input     The input text to get embeddings for, encoded as a string or array of tokens.
	 * @param   string|null  $user      A unique identifier representing your end-user (optional).
	 *
	 * @return  object|null
	 * @since   3.2.0
	 **/
	public function create(
		string $model,
		$input,
		?string $user = null
	): ?object
	{
		// Build the request path.
		$path = "/embeddings";

		// Set the request data.
		$data = new \stdClass();
		$data->model = $model;
		$data->input = $input;

		if ($user !== null)
		{
			$data->user = $user;
		}

		// Send the post request.
		return $this->response->get(
			$this->http->post(
				$this->uri->get($path), json_encode($data)
			)
		);
	}