class_docstr: Represents a ring domain. 
class_docstr_tok: ["Represents","a","ring","domain","."]
docstr: Returns denominator of `a`. 
docstr_tok: ["Returns","denominator","of","`","a","`","."]
code: def denom(self, a):
      """Returns denominator of `a`."""
      return self.one
  
file_path: sympy/sympy/polys/domains/ring.py
imports: from sympy.polys.domains.domain import Domain
  from sympy.polys.polyerrors import ExactQuotientFailed, NotInvertible, NotReversible
  from sympy.utilities import public
label_desc: Use image node_id 10 for calling the Ring obj's underlying member method code with example usage: obj.denom(a) and returns: self