class_docstr: A class for representing multivariate polynomial rings. 
code: def new(self, element):
      return self.ring.ring_new(element)
  
imports: from sympy.polys.domains.ring import Ring
  from sympy.polys.domains.compositedomain import CompositeDomain
  from sympy.polys.polyerrors import CoercionFailed, GeneratorsError
  from sympy.utilities import public
label_desc: Use image node_id 2 for calling the PolynomialRing obj's underlying member method code with example usage: obj.new(element) and returns: self