How to use the pcdsutils.qt function in pcdsutils

def __init__(self, parent=None, *, pin=False):
        super().__init__(parent=parent)

        self._tree = ParameterTree(parent=self, showHeader=False)
        self._tree.setAlternatingRowColors(False)
        self._save_action = ptypes.ActionParameter(name='Save Suite')
        self._tree.addParameters(self._save_action)
        self._save_action.sigActivated.connect(self.save)

        self._bar = pcdsutils.qt.QPopBar(title='Suite', parent=self,
                                         widget=self._tree, pin=pin)

        self._content_frame = QtWidgets.QFrame(self)
        self._content_frame.setObjectName("content")
        self._content_frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self._content_frame.setLayout(QtWidgets.QHBoxLayout())

        # Horizontal box layout: [PopBar] [Content Frame]
        layout = QtWidgets.QHBoxLayout()
        self.setLayout(layout)
        layout.setSpacing(1)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.addWidget(self._bar)
        layout.addWidget(self._content_frame)

        self.embedded_dock = None