Openapi.seen: def of ezmcp@0.1.0.0
Import: import ezmcp@0.1.0.0/src/openapi.bend as Openapi
Lines 278-284 of ezmcp@0.1.0.0/src/openapi.bend: https://jend.leeeet.dev/read.txt?path=ezmcp@0.1.0.0/src/openapi.bend&start_line=278&end_line=284

import Base

# whether a reference is one being followed already
def seen(refs: List<&2, String>, +ref: String) -> Bool:
  match refs:
    case []:
      False{}
    case +got <> rest:
      or.else(String.eq(got, ref), _u => seen(rest, ref))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq
  https://jend.leeeet.dev/definition.txt?path=ezmcp@0.1.0.0/src/openapi.bend&name=or.else