Function getResourceMatcher

getResourceMatcher(
resourceWithAcr: WithAccessibleAcr,
name: string,
): null | ThingPersisted
```
function is still experimental and subject to change, even in a non-major release.
```
Get the [[ResourceMatcher]] with the given name from an Resource's Access Control Resource.
Parameters
- resourceWithAcr: WithAccessibleAcr
  The Resource whose Access Control Resource contains the given [[ResourceMatcher]].
- name: string
  Name that identifies this [[ResourceMatcher]].
Returns null | ThingPersisted
The requested [[ResourceMatcher]], if it exists, or null if it does not.

Since
Not released yet.
- Defined in src/acp/matcher.ts:382