def is_null
import yaml-for-bend@0.1.1.0/core.bend as Coreimport Base
28def is_null(+s: String) -> Bool:
29 Bool.or(Bool.or(String.is_empty(s), String.eq(s, "~")), Bool.or(String.eq(s, "null"), Bool.or(String.eq(s, "Null"), String.eq(s, "NULL"))))