class_docstr: A class for representing multivariate polynomial rings. 
docstr: Convert a GMPY `mpz` object to `dtype`. 
docstr_tok: ["Convert","a","GMPY","`","mpz","`","object","to","`","dtype","`","."]
code: def from_ZZ_gmpy(K1, a, K0):
      """Convert a GMPY `mpz` object to `dtype`."""
      return K1(K1.domain.convert(a, K0))
  
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 17 for calling the PolynomialRing obj's underlying member method code with example usage: obj.from_ZZ_gmpy(K1, a, K0) and returns: K1