syntax_data: {"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"s2:"}]}
source_snippet:         s2: sreg_low16, sreg = ["s2"],
context_before:         s1: sreg_low16, sreg = ["s1"],
context_after:         s3: sreg_low16, sreg = ["s3"],