getProcessInfo() {
    return {
      pid: process.pid,
      uid: process.getuid ? process.getuid() : null,
      gid: process.getgid ? process.getgid() : null,
      cwd: process.cwd(),
      execPath: process.execPath,
      version: process.version,
      argv: process.argv,
      memoryUsage: process.memoryUsage()
    };
  }
Gets all relevant process information for the currently running process.
@returns {mixed} - TODO: add return description.