Function serde_merge::mmerge

pub fn mmerge<L, R>(left: L, right: R) -> Result<Map> where
    L: Serialize,
    R: Serialize, 

Merge two types into serde_merge::Map, returns serde_merge::Result<serde_merge::Map>.

Merge R into L. R override matching keys of L. Both L and R have to implement serde::Serialize.