IO.OP: type of Base
Import: import Base
Lines 128-131 of Base/base.bend: https://jend.leeeet.dev/read.txt?path=Base/base.bend&start_line=128&end_line=131

import Base

type IO.OP<-R: Type> is Type:
  Emit{value: R}
  Halt{code: U32, message: String}
  Exit{code: U32}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32