parameters: (self,level=0)
docstring: prints the indented tree
docstring_summary: prints the indented tree
docstring_tokens: prints the indented tree
function: def pprint(self,level=0):
          """prints the indented tree"""
          if self.arguments:
              argstr = ' (%s)' % self.arguments
          else:
              argstr = ''
          print('%s %s%s' %('  '*level,self.name,argstr))
          for child in self.children:
              child.pprint(level+1)
function_tokens: def pprint ( self , level = 0 ) : if self . arguments : argstr = ' (%s)' % self . arguments else : argstr = '' print ( '%s %s%s' % ( '  ' * level , self . name , argstr ) ) for child in self . children : child . pprint ( level + 1 )