isBusy() Netscript Function
===========================

.. js:function:: isBusy()

    If you are not in BitNode-4, then you must have Level 1 of Source-File 4 in order to run this function.

    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, or committing a crime.