Add a 'FreeText' annotation in rectangle 'rect'.

def addFreetextAnnot(self, rect, text, fontsize=12, fontname=None, color=None, rotate=0):
        """Add a 'FreeText' annotation in rectangle 'rect'."""
        CheckParent(self)

        val = _fitz.Page_addFreetextAnnot(self, rect, text, fontsize, fontname, color, rotate)

        if not val: return
        val.thisown = True
        val.parent = weakref.proxy(self)
        self._annot_refs[id(val)] = val

        return val