<setup>
 <setup>is a Sectional component that
acts as a container element for defining other components. Content defined within the  <setup>
portion will not be rendered.
Attributes and Properties
The  <setup> component has no attributes or properties.
Example: Defining maths in a  <setup>
Components can be defined in a  <setup> and referenced later in the document with the $name
notation.
Example: Defining geometry in a  <setup>
Components can be defined in a  <setup> and referenced later in the document with the $name notation.
Example: Using a  <setup> within a  <graph>
A  <setup> block can also occur in a  <graph>. In this case, we don’t want the  <boolean> value to render on the  <graph>, we just want to define it near the  <updateValue> that is using it.