Websocket.tokens: def of bend-kit-websocket@0.4.0.0
Import: import bend-kit-websocket@0.4.0.0/websocket.bend as Websocket
Lines 193-199 of bend-kit-websocket@0.4.0.0/websocket.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-websocket@0.4.0.0/websocket.bend&start_line=193&end_line=199

import Base

# Connection is a list header: its lines join into one comma list (RFC 9110 §5.3).
def tokens(xs: List<&2, String>, +want: String) -> Bool:
  match xs:
    case Nil{}:
      False{}
    case Con{v, t}:
      Bool.or(token(String.split(String.to_lower(v), ','), want), tokens(t, want))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  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.split
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.to_lower
  https://jend.leeeet.dev/definition.txt?path=bend-kit-websocket@0.4.0.0/websocket.bend&name=token