class_docstr: Base class for composite domains, e.g. ZZ[x], ZZ(X). 
docstr: Returns an exact version of this domain. 
code: def get_exact(self):
      """Returns an exact version of this domain."""
      return self.set_domain(self.domain.get_exact())
  
file_path: sympy/sympy/polys/domains/compositedomain.py
imports: from sympy.polys.domains.domain import Domain
  from sympy.polys.polyerrors import GeneratorsError
  from sympy.utilities import public
label_desc: Use image node_id 5 for calling the CompositeDomain obj's underlying member method code with example usage: obj.get_exact() and returns: self