syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"Ok(FloatVarValue::Known(known))"}]}
source_snippet:                 Ok(FloatVarValue::Known(known))
context_before:             | (FloatVarValue::Known(known), FloatVarValue::Unknown) => {
context_after:             }