If you are not in BitNode-4, then you must have Level 1 of Source-File 4 in order to use this function and the RAM cost is doubled.
Returns a boolean indicating whether or not the player is currently performing an ‘action’. These actions include working for a company/faction, studying at a univeristy, working out at a gym, creating a program, committing a crime, or carrying out a Hacking Mission.
<b>Signature:</b>
```typescript
isBusy(): boolean;
```
<b>Returns:</b>
boolean
True if the player is currently performing an ‘action’, false otherwise.