spam-report-url-ping-temp-agent-function is a variable defined in `spam-report.el'.
Its value is
nil
This variable may be risky if used as a file-local variable.
Documentation:
Internal variable for `spam-report-agentize' and `spam-report-deagentize'.
This variable will store the value of `spam-report-url-ping-function' from
before `spam-report-agentize' was run, so that `spam-report-deagentize' can
undo that change.