class_docstr: Class representing a monomial, i.e. a product of powers. 
class_docstr_tok: ["Class","representing","a","monomial",",","i.e",".","a","product","of","powers","."]
docstr: Convert a monomial instance to a SymPy expression. 
docstr_tok: ["Convert","a","monomial","instance","to","a","SymPy","expression","."]
code: def as_expr(self, *gens):
      """Convert a monomial instance to a SymPy expression."""
      gens = gens or self.gens
  
      if not gens:
          raise ValueError(
              "Cannot convert %s to an expression without generators"
              % self
          )
  
      return Mul(
          *[gen**exp for gen, exp in zip(gens, self.exponents)]
      )
  
imports: from itertools import combinations_with_replacement, product
  from textwrap import dedent
  from sympy.core import Mul, S, Tuple, sympify
  from sympy.polys.polyerrors import ExactQuotientFailed
  from sympy.polys.polyutils import PicklableWithSlots, dict_from_expr
  from sympy.utilities import public
  from sympy.utilities.iterables import is_sequence, iterable
label_desc: Use image node_id 8 for calling the Monomial obj's underlying member method code with example usage: obj.as_expr() and returns: Mul