Always will always run.

GetAnyInput returns a value or output in the ctx.

GetAnyValue returns a value or output in the ctx.

GetInput returns a value or output in the ctx.

GetValue returns a value or output in the ctx.

SetOutput returns a [Command] that will store an output.

SetValue returns a [Command] that will store value in key.

ValueExists will evaluate to true if the given key has a value.

Ref is an [Input] that refers to a value retrievable by [GetValue].

Command represents a side effect of a step.

Condition controls whether or not a job or step (or post step) should run.

ConditionFunc is an adapter to allow the use of ordinary functions as Conditions.

Input is an input value to a step.