Core.is_nan: def of yaml-for-bend@0.1.1.0
Import: import yaml-for-bend@0.1.1.0/core.bend as Core
Lines 54-55 of yaml-for-bend@0.1.1.0/core.bend: https://jend.leeeet.dev/read.txt?path=yaml-for-bend@0.1.1.0/core.bend&start_line=54&end_line=55

import Base

def is_nan(+s: String) -> Bool:
  Bool.or(String.eq(s, ".nan"), Bool.or(String.eq(s, ".NaN"), String.eq(s, ".NAN")))

Uses (4):
  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=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq