import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Objects;

class PathSource implements ModelSource {

    private final Path path;
    private final String location;

    PathSource(Path path) {
        this(path, null);
    }

    PathSource(Path path, String location) {
        this.path = path;
        this.location = location != null ? location : path.toString();