How to use the pydm.widgets.base.PyDMWidget.__init__ function in pydm

def __init__(self, parent=None, init_channel=None):
        QWidget.__init__(self, parent)
        PyDMWidget.__init__(self, init_channel=init_channel)
        self.value = 0
        self.setLayout(QGridLayout(self))

        self._on_color = QColor(0, 255, 0)
        self._off_color = QColor(100, 100, 100)
        self._disconnected_color = QColor(255, 255, 255)
        self._invalid_color = QColor(255, 0, 255)

        self._pen_style = Qt.SolidLine
        self._line_pen = QPen(self._pen_style)

        self._orientation = Qt.Vertical

        # This is kind of ridiculous, importing QTabWidget just to get a 4-item enum thats usable in Designer.
        # PyQt5 lets you define custom enums that you can use in designer with QtCore.Q_ENUMS(), doesn't exist in PyQt4.
        self._labels = []

def __init__(self, parent=None, init_channel=None):
        QFrame.__init__(self, parent)
        PyDMWidget.__init__(self, init_channel=init_channel)

        self._disable_on_disconnect = False
        self.alarmSensitiveBorder = False

def __init__(self, parent=None, init_channel=None):
        QtWidgets.QWidget.__init__(self, parent)
        PyDMWidget.__init__(self, init_channel)
        self._items = {}
        self.setLayout(QtWidgets.QVBoxLayout())
        self.widget = QtWidgets.QTreeWidget(self)
        self.widget.setHeaderLabels(['Key', 'Value'])
        self.layout().addWidget(self.widget)
        self._items['root'] = self.widget.invisibleRootItem()
        self._visited_items = set(['root'])

self._rotation = 0.0
        self._brush = QBrush(Qt.SolidPattern)
        self._original_brush = None
        self._painter = QPainter()
        self._pen = QPen(Qt.NoPen)
        self._pen_style = Qt.NoPen
        self._pen_cap_style = Qt.SquareCap
        self._pen_join_style = Qt.MiterJoin
        self._pen_width = 0
        self._pen_color = QColor(0, 0, 0)
        self._pen.setCapStyle(self._pen_cap_style)
        self._pen.setJoinStyle(self._pen_join_style)
        self._original_pen_style = self._pen_style
        self._original_pen_color = self._pen_color
        QWidget.__init__(self, parent)
        PyDMWidget.__init__(self, init_channel=init_channel)
        self.alarmSensitiveBorder = False

self._normalize_data = False
        self._auto_downsample = True
        self._show_axes = False

        # Set default reading order of numpy array data to Fortranlike.
        self._reading_order = ReadingOrder.Fortranlike

        self._redraw_rate = 30

        # Set color map limits.
        self.cm_min = 0.0
        self.cm_max = 255.0

        plot_item = PlotItem()
        ImageView.__init__(self, parent, view=plot_item)
        PyDMWidget.__init__(self)
        self._channels = [None, None]
        self.thread = None
        self.axes = dict({'t': None, "x": 0, "y": 1, "c": None})
        self.showAxes = self._show_axes

        # Hide some itens of the widget.
        self.ui.histogram.hide()
        self.getImageItem().sigImageChanged.disconnect(
            self.ui.histogram.imageChanged)
        self.ui.roiBtn.hide()
        self.ui.menuBtn.hide()

        # Make a right-click menu for changing the color map.
        self.cm_group = QActionGroup(self)
        self.cmap_for_action = {}
        for cm in self.color_maps:

def __init__(self, parent=None, init_channel=None):
        QWidget.__init__(self, parent)
        PyDMWidget.__init__(self, init_channel=init_channel)
        if 'Index' not in PyDMSymbol.RULE_PROPERTIES:
            PyDMSymbol.RULE_PROPERTIES = PyDMWidget.RULE_PROPERTIES.copy()
            PyDMSymbol.RULE_PROPERTIES.update(
                {'Index': ['set_current_key', object]})
        self.app = QApplication.instance()
        self._current_key = 0
        self._state_images_string = ""
        self._state_images = {}  # Keyed on state values (ints), values are (filename, qpixmap or qsvgrenderer) tuples.
        self._aspect_ratio_mode = Qt.KeepAspectRatio
        self._sizeHint = self.minimumSizeHint()
        self._painter = QPainter()

def __init__(self, parent=None, init_channel=None):
        QFrame.__init__(self, parent)
        PyDMWidget.__init__(self, init_channel=init_channel)
        self._show_value = True
        self._show_limits = True

        self.scale_indicator = QScale()
        self.value_label = QLabel()
        self.lower_label = QLabel()
        self.upper_label = QLabel()

        self.value_label.setText('')
        self.lower_label.setText('')
        self.upper_label.setText('')

        self._value_position = Qt.TopEdge
        self._limits_from_channel = True
        self._user_lower_limit = 0
        self._user_upper_limit = 0

def __init__(self, parent=None, init_channel=None):
        QLabel.__init__(self, parent)
        PyDMWidget.__init__(self, init_channel=init_channel)
        if 'Text' not in PyDMLabel.RULE_PROPERTIES:
            PyDMLabel.RULE_PROPERTIES = PyDMWidget.RULE_PROPERTIES.copy()
            PyDMLabel.RULE_PROPERTIES.update(
                {'Text': ['value_changed', str]})
        self.app = QApplication.instance()
        self.setTextFormat(Qt.PlainText)
        self.setTextInteractionFlags(Qt.NoTextInteraction)
        self.setText("PyDMLabel")
        self._display_format_type = self.DisplayFormat.Default
        self._string_encoding = "utf_8"
        if is_pydm_app():
            self._string_encoding = self.app.get_string_encoding()