class_docstr: A class for representing multivariate rational function fields. 
docstr: Returns ``True`` if two domains are equivalent. 
code: def __eq__(self, other):
      """Returns ``True`` if two domains are equivalent."""
      return isinstance(other, FractionField) and (
          self.dtype.field,
          self.domain,
          self.symbols,
      ) == (other.dtype.field, other.domain, other.symbols)
  
imports: from sympy.polys.domains.compositedomain import CompositeDomain
  from sympy.polys.domains.field import Field
  from sympy.polys.polyerrors import CoercionFailed, GeneratorsError
  from sympy.utilities import public
label_desc: Use image node_id 8 for calling the FractionField obj's underlying member method code with example usage: obj.__eq__(other) and returns: unknown