class_docstr: Real numbers up to the given precision. 
class_docstr_tok: ["Real","numbers","up","to","the","given","precision","."]
docstr: Returns GCD of ``a`` and ``b``. 
docstr_tok: ["Returns","GCD","of","``","a","``","and","``","b","``","."]
code: def gcd(self, a, b):
      """Returns GCD of ``a`` and ``b``."""
      return self.one
  
imports: from sympy.external.gmpy import SYMPY_INTS
  from sympy.core.numbers import Float
  from sympy.polys.domains.field import Field
  from sympy.polys.domains.simpledomain import SimpleDomain
  from sympy.polys.domains.characteristiczero import CharacteristicZero
  from sympy.polys.domains.mpelements import MPContext
  from sympy.polys.polyerrors import CoercionFailed
  from sympy.utilities import public
label_desc: Use image node_id 24 for calling the RealField obj's underlying member method code with example usage: obj.gcd(a, b) and returns: self