class_docstr: Extends QTableWidget with some useful functions for automatic data handling
  and copy / export context menu. Can automatically format and display a variety
  of data types (see :func:`setData() <pyqtgraph.TableWidget.setData>` for more
  information.
code: def iterFirstAxis(self, data):
      for i in range(data.shape[0]):
          yield data[i]
  
imports: import numpy
  from ..Qt import QtCore, QtGui, QtWidgets
label_desc: Use image node_id 8 for calling the TableWidget obj's underlying member method code with example usage: obj.iterFirstAxis(data) without return types