code: def _print_Sum2(self, expr):
      return "Sum2(%s, (%s, %s, %s))" % (
          self._print(expr.f),
          self._print(expr.i),
          self._print(expr.a),
          self._print(expr.b),
      )
  
imports: from __future__ import annotations
  from typing import Any
  from sympy.core.function import AppliedUndef
  from sympy.core.mul import Mul
  from mpmath.libmp import repr_dps, to_str
  from .printer import Printer, print_function
label_desc: Use image node_id 35 for calling the ReprPrinter obj's underlying member method code with example usage: obj._print_Sum2(expr) and returns: unknown