Example
{{ session:flash message="You did it!" }}
The next (and only next) request will then have that variable available.
{{ session:message }} // You did it!
Multiple Variables
You can set multiple variables at once and reference interpolated data (references to variables).
{{ session:flash success="true" :clicked="order_button" }}
Setting Array Data
Array data can be set with dot notation.
{{ session:flash likes.snow_cones="true" likes.italian_ice="false" }}