NAME
        AllocRadioButtonNodeA -- Allocate a RadioButton node. (V40)
    SYNOPSIS
        struct Node * AllocRadioButtonNode(UWORD, Tag, ...)
        node = AllocRadioButtonNode(columns, Tag, ...)
        struct Node * AllocRadioButtonNodeA(UWORD, struct TagItem *)
        node = AllocRadioButtonNodeA(taglist)
    FUNCTION
        Allocates a node that can be added to the Exec linked list of
        labels in the radiobutton.  This is the only way to allocate a
        node for this list, you cannot allocate nodes yourself because
        the RadioButton class uses a private node structure.
    INPUTS
        taglist - Attributes for the node, passed onto
            SetRadioButtonNodeAttrsA().
    RESULT
        node - A node that can be added into the Exec list of labels for
            a RadioButton gadget.
    SEE ALSO
        FreeRadioButtonNode(), SetRadioButtonNodeAttrsA()