Variables

In FuncSug, variables act as containers and signals.

Each variable:

• contains a multi-value (an uninitialized variable contains the no-value multi-value | |)
• and has a beep state (false by default) and a bip state (false by default).

Each time a variable is set or you've made bip theVariable, the variable is bip-ed.

Each time a variable is bip-ed:

• its bip state is very briefly set to true,
• and its beep state is set to true until you make awaitBeep theVariable or stopBeep theVariable.