class_docstr: ParameterItem displaying a QTextEdit widget.
code: def makeWidget(self):
      self.hideWidget = False
      self.asSubItem = True
      self.textBox = w = QtWidgets.QTextEdit()
      w.sizeHint = lambda: QtCore.QSize(300, 100)
      w.value = w.toPlainText
      w.setValue = w.setPlainText
      w.sigChanged = w.textChanged
      return w
  
file_path: pyqtgraph/pyqtgraph/parametertree/parameterTypes/text.py
imports: from ...Qt import QtCore, QtWidgets
  from ..Parameter import Parameter
  from .basetypes import WidgetParameterItem
label_desc: Use image node_id 1 for calling the TextParameterItem obj's underlying member method code with example usage: obj.makeWidget() and returns: w