Undefined liquid.Undefined Bases: Mapping[Any, object] The default undefined type. Always evaluates to an empty string. Can be iterated over and indexed without error. poke poke() -> bool Prod the type, giving it the opportunity to raise an exception. liquid.StrictUndefined Bases: Undefined An undefined that raises an exception for everything other than repr. liquid.DebugUndefined Bases: Undefined An undefined that returns debug information when rendered. liquid.StrictDefaultUndefined Bases: StrictUndefined An undefined that plays nicely with the default filter. liquid.FalsyStrictUndefined Bases: StrictUndefined An strict undefined type that can be tested for truthiness.