code: def save_process(MAVExpLastGraph, child_pipe_console_input, child_pipe_graph_input, statusMsgs):
      '''process for saving a graph'''
      from MAVProxy.modules.lib import wx_processguard
      from MAVProxy.modules.lib.wx_loader import wx
      from MAVProxy.modules.lib.wxgrapheditor import GraphDialog
      
      #This pipe is used to send text to the console
      global pipe_console_input
      pipe_console_input = child_pipe_console_input
  
      #This pipe is used to send graph commands
      global pipe_graph_input
      pipe_graph_input = child_pipe_graph_input
      
      #The valid expression messages, required to
      #validate the expression in the dialog box
      global msgs
      msgs = statusMsgs
      
      app = wx.App(False)
      if MAVExpLastGraph.description is None:
          MAVExpLastGraph.description = ''
      frame = GraphDialog('Graph Editor',
                          MAVExpLastGraph,
                          save_callback)
      frame.ShowModal()
      frame.Destroy(f save_process(MAVExpLastGraph, child_pipe_console_input, child_pipe_graph_input, statusMsgs):
      '''process for saving a graph'''
      from MAVProxy.modules.lib import wx_processguard
      from MAVProxy.modules.lib.wx_loader import wx
      from MAVProxy.modules.lib.wxgrapheditor import GraphDialog
      
      #This pipe is used to send text to the console
      global pipe_console_input
      pipe_console_input = child_pipe_console_input
  
      #This pipe is used to send graph commands
      global pipe_graph_input
      pipe_graph_input = child_pipe_graph_input
      
      #The valid expression messages, required to
      #validate the expression in the dialog box
      global msgs
      msgs = statusMsgs
      
      app = wx.App(False)
      if MAVExpLastGraph.description is None:
          MAVExpLastGraph.description = ''
      frame = GraphDialog('Graph Editor',
                          MAVExpLastGraph,
                          save_callback)
      frame.ShowModal()
      frame.Destroy()
docs: process for saving a graph