class_docstr: Use ``lambda`` printer but print numbers as ``mpi`` intervals. 
class_docstr_tok: ["Use","``","lambda","``","printer","but","print","numbers","as","``","mpi","``","intervals","."]
code: def _print_Pow(self, expr):
      return super(MpmathPrinter, self)._print_Pow(expr, rational=True)
  
imports: from .pycode import PythonCodePrinter, MpmathPrinter
  from .numpy import NumPyPrinter
  from sympy.core.sorting import default_sort_key
label_desc: Use image node_id 4 for calling the IntervalPrinter obj's underlying member method code with example usage: obj._print_Pow(expr) and returns: super