Closed.binds: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/rules/laws/closed.bend as Closed
Lines 16-24 of bolt@1.27.0.0/src/rules/laws/closed.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/rules/laws/closed.bend&start_line=16&end_line=24

import Base
import bolt@1.27.0.0/src/syntax/tree.bend as Tree

# does a law's body bind anything (a `for` or `exs` line)?
def binds(body: Tree.Node) -> Bool:
  match body:
    case Tree.NCons{Tree.Stmt{Tree.SFor{}, kids, b}, rest}:
      True{}
    case Tree.NCons{h, rest}:
      binds(rest)
    case other:
      False{}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/syntax/tree.bend&name=Node
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/syntax/tree.bend&name=StmtKind