Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
function::probe_type - The low level probe handler type of the current probe.
SYNOPSIS
probe_type:string()
ARGUMENTS
None
DESCRIPTION
Returns a short string describing the low level probe handler type for the current probe point. This is
for informational purposes only. Depending on the low level probe handler different context functions can
or cannot provide information about the current event (for example some probe handlers only trigger in
user space and have no associated kernel context). High-level probes might map to the same or different
low-level probes (depending on systemtap version and/or kernel used).
SystemTap Tapset Reference March 2016 FUNCTION::PROBE_TYPE(3stap)