syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"`wall-time`"}]}
source_snippet:         `wall-time` (monotonic clock, i.e. `std::time::Instant`)
context_before:         "counter used by the self profiler (default: `wall-time`), one of:
context_after:         `instructions:u` (retired instructions, userspace-only)