Say.probe: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/share/say.bend as Say
Lines 171-174 of ezx@1.11.0.0/src/share/say.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/share/say.bend&start_line=171&end_line=174

import Base

# the parent's fd, by number. The child cannot look at its own: that one was
# replaced with a pipe before this ran. `$1` is the number.
def probe() -> String:
  "ppid=; while read -r k v; do case $k in PPid:) ppid=$v;; esac; done < /proc/self/status; readlink /proc/$ppid/fd/$1 2>/dev/null"

Uses (1):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String