parameters: (self, tree)
docstring: Constructor.
  
          Arguments:
          tree -- TTree object
docstring_summary: Constructor.
docstring_tokens: Constructor .
function: def __init__(self, tree):
          """Constructor.
  
          Arguments:
          tree -- TTree object
          """
          super(Tracks, self).__init__(tree, "trk_pt", Track)
function_tokens: def __init__ ( self , tree ) : super ( Tracks , self ) . __init__ ( tree , "trk_pt" , Track )