The client used to make requests to the PagerDuty v2 API

Escalation policies make sure the right people are alerted at the right time

An incident is a normalized, de-duplicated event generated by a PagerDuty integration. It can be thought of as a problem or an issue within your service that needs to be addressed and resolved

An on-call schedule determines the time periods that users are on call. Only on-call users are eligible to receive notifications from incidents

A PagerDuty service represents something you monitor (like a web service, email service, or database service). It is a container for related incidents that associates them with escalation policies

PagerDuty users are members of a PagerDuty account that have the ability to interact with incidents and other data on the account