RouterFind 
Finds a route object based on the provided lookup parameters.
Type parameters 
| Parameter | Type | 
|---|---|
TSource | Key | 
Parameters 
| Parameter | Type | 
|---|---|
source | Url | TSource | 
params | RouterFindArgs | 
RouterFindArgs 
If source is Url, expected type for params is never. Else when source is TSource, router will require params for required path/query params. If no path/query params on route or all params are optional, the argument will be optional.
Returns 
ResolvedRoute | undefined