syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"x23:"}]}
source_snippet:         x23: reg = ["x23", "s7"] % not_e,
context_before:         x22: reg = ["x22", "s6"] % not_e,
context_after:         x24: reg = ["x24", "s8"] % not_e,