syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"r22:"}]}
source_snippet:         r22: reg = ["r22", "l6"], // % reserved_l6
context_before:         r21: reg = ["r21", "l5"], // % reserved_l5
context_after:         r23: reg = ["r23", "l7"], // % reserved_l7