purchaseTor() Netscript Function
================================

.. js:function:: purchaseTor()

    :RAM cost: 2 GB

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

    This function allows you to automatically purchase a TOR router. The cost for purchasing a TOR router using this
    function is the same as if you were to manually purchase one.

    This function will return true if it successfully purchase a TOR router and false otherwise.

    :RAM cost: 2 GB