parameters: (self, xdmffilename)
docstring: Sets filename and sets mesh instance to None.
docstring_summary: Sets filename and sets mesh instance to None.
docstring_tokens: Sets filename and sets mesh instance to None .
function: def __init__(self, xdmffilename):
          """
          Sets filename and sets mesh instance to None.
          """
          self.xdmffilename = xdmffilename
          self.mesh = None
function_tokens: def __init__ ( self , xdmffilename ) : self . xdmffilename = xdmffilename self . mesh = None