code: def mouseDoubleClickEvent(self, ev):
      if ev.button() == QtCore.Qt.MouseButton.LeftButton:
          self.dock.float()
  
imports: import warnings
  from ..Qt import QtCore, QtGui, QtWidgets
  from ..widgets.VerticalLabel import VerticalLabel
  from .DockDrop import DockDrop
label_desc: Use image node_id 9 for calling the DockLabel obj's underlying member method code with example usage: obj.mouseDoubleClickEvent(ev) without return types