[youtubei.js](../../../../README.md) / [Generator](../README.md) / mergeKeyInfo # Function: mergeKeyInfo() > **mergeKeyInfo**(`key_info`, `new_key_info`): `object` Defined in: [src/parser/generator.ts:734](https://github.com/LuanRT/YouTube.js/blob/0733f60b57877f6b8b87dfd5cc6195b5085f5c09/src/parser/generator.ts#L734) Merges two sets of key info, resolving any conflicts ## Parameters ### key\_info [`KeyInfo`](../type-aliases/KeyInfo.md) The current key info ### new\_key\_info [`KeyInfo`](../type-aliases/KeyInfo.md) The new key info ## Returns `object` The merged key info ### changed\_keys > **changed\_keys**: \[`string`, [`InferenceType`](../type-aliases/InferenceType.md)\][] ### resolved\_key\_info > **resolved\_key\_info**: \[`string`, [`InferenceType`](../type-aliases/InferenceType.md)\][]