Add a private function to CompositeTransform to return an encapsulated version
Add a private function to CompositeTransform to return an encapsulated version

astropy/astropy,larrybradley/astropy,pllim/astropy,mhvk/astropy,astropy/astropy,StuartLittlefair/astropy,astropy/astropy,larrybradley/astropy,lpsinger/astropy,astropy/astropy,larrybradley/astropy,saimn/astropy,lpsinger/astropy,saimn/astropy,lpsinger/astropy,StuartLittlefair/astropy,larrybradley/astropy,mhvk/astropy,lpsinger/astropy,saimn/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,mhvk/astropy,pllim/astropy,astropy/astropy,mhvk/astropy,StuartLittlefair/astropy,saimn/astropy,saimn/astropy,mhvk/astropy,pllim/astropy,larrybradley/astropy,lpsinger/astropy,pllim/astropy,pllim/astropy