Process.alive-question-mark

You're seeing just the function alive-question-mark, go back to Process module for more information.

Specs

alive?(pid()) :: boolean()

Tells whether the given process is alive on the local node.

If the process identified by pid is alive (that is, it's not exiting and has not exited yet) than this function returns true. Otherwise, it returns false.

pid must refer to a process running on the local node or ArgumentError is raised.

Inlined by the compiler.