Man pages matching name function::json_add_array_string_metric in section 3stap:

function::json_add_array_string_metric.3stap.en	debian 10 / systemtap-doc
function::json_add_array_string_metric.3stap.en	debian 11 / systemtap-doc
function::json_add_array_string_metric.3stap.en	debian 12 / systemtap-doc