Compatibility with Python 3.6.

                    self.Command,

                ]

                + self.Arguments,

                capture_output=True,

                stdout=subprocess.PIPE,

                stderr=subprocess.PIPE,

                check=False,

                text=True,

                timeout=timeout,

                universal_newlines=True,

            )

        except FileNotFoundError:

            raise RuntimeError(f"Command {self.Command} not found.")