syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"Some(FloatConv::FloatPair(l,"}]}
source_snippet:             Some(FloatConv::FloatPair(l, r)) if *avail_fprs >= 2 => {
context_before:             }
context_after:                 *avail_fprs -= 2;