Action returns a Step which will execute the action function `f`.

AuthorizationRefreshingAction returns a wrapper Step which will refresh `authorizer` if the step returns an Azure AuthenticationError and rerun it.

Condition returns a Step suitable for checking whether subsequent Steps can be executed.

FriendlyName returns a "friendly" stringified name of the given func.

Run executes the provided steps in order until one fails or all steps are completed.

Step is the interface for steps that Runner can execute.