Pattern
case value:
Use case inside a match or switch section to define one branch.
case value:
import lib/std.dl
set number to 3
match based on number:
case 1:
print "one" as line
case 3:
print "three" as line
A case belongs inside a match or switch section. It is not used on its own.
Add a new case for 2. Then change number and run the file again.