[...fileOwners.keys()].forEach(platform => {
            const files = fileOwners.get(platform);
            if (files.includes(fileMetadata.file)) {
                result.get(platform).files.push(fileMetadata.file);
            }
        });
    });

    console.log("categorize: ");
    console.log([...result.values()]);
    return result;
}

    const result = new Map();
    files.forEach(file => {
        const platform = getPlatform(file);
        if (!result.has(platform)) {
            result.set(platform, []);
        }
        result.get(platform).push(file);
    });

    console.log("byPlatform: ");
    [...result.keys()].forEach(platform => {
        console.log("[" + platform + ": [" + result.get(platform).join(", ") + "]]");
    });
    return result;
}

                .forEach(owner => {
                    if (!result.has(owner)) {
                        result.set(owner, []);
                    }
                    result.get(owner).push(f);
                });
        });

        console.log("byCodeowner: ");
        [...result.keys()].forEach(owner => {
            console.log("[" + owner + ": [" + result.get(owner).join(", ") + "]]");
        });

            return
        }

        if (checkPattern(pattern)) {
            const rule = createRule(pattern, this._ignoreCase)
            this._added = true
            this._rules.push(rule)
        }
    }

    // @param {Array<string> | string | Ignore} pattern
    add (pattern) {
        this._added = false

        makeArray(
            isString(pattern)