class_docstr: Convert an array to a different dtype.
      
class_docstr_tok: ["Convert","an","array","to","a","different","dtype","."]
code: def processData(self, data):
      s = self.stateGroup.state()
      return data.astype(s["dtype"])
  
imports: import numpy
  from ...graphicsItems.LinearRegionItem import LinearRegionItem
  from ...Qt import QtCore, QtWidgets
  from ...widgets.TreeWidget import TreeWidget
  from ..Node import Node
  from .None import functions
  from .common import CtrlNode
label_desc: Use image node_id 1 for calling the AsType obj's underlying member method code with example usage: obj.processData(data) and returns: data