def need

bend-kit-webhooks@0.11.0.1 · webhooks.bend:43

import Base

43def need(+name: String, m: Maybe<&2, String>) -> Result<&1, &1, Err, String>:
44  match m:
45    case None{}:
46      Fail{Missing{name}}
47    case Some{v}:
48      Done{v}