function flattenAny(obj, prefix = '', result = {}) { const entries = obj instanceof Map ? obj.entries() : Object.entries(obj); for (const [key, value] of entries) { const newKey = prefix ? `${prefix}.${key}` : `${key}`; if ( value instanceof Map || (typeof value === 'object' && value !== null && !Array.isArray(value)) ) { flattenAny(value, newKey, result); } else { result[newKey] = value; } } return result; } module.exports = { flattenAny }