-`path`: path to template file. This options is always required.
-`escape`: Enable HTML escaping (default: `true`)
-`delimiter`: Replace the '%' character used for the tag delimiter (default: '%')
-`rm_whitespace`: try to strip whitespaces as much as possible without collapsing HTML structure (default: `false`). This option might not work correctly if your templates have inline `script` tag.
Sailfish allows global and local configuration in a file named `sailfish.toml`. Sailfish looks for this file in same directory as `Cargo.toml` and all parent directories.
If a key is specified in multiple configuration files, the value in the deeper directory takes precedence over ancestor directories.
If a key is specified in both configuration file and derive options, then the value specified in the derive options takes precedence over the configuration file.