fixed and bounds are no longer serialized if they are defualt values
fixed and bounds are no longer serialized if they are defualt values

aleksandr-bakanov/astropy,mhvk/astropy,StuartLittlefair/astropy,mhvk/astropy,larrybradley/astropy,astropy/astropy,larrybradley/astropy,saimn/astropy,aleksandr-bakanov/astropy,astropy/astropy,larrybradley/astropy,mhvk/astropy,saimn/astropy,dhomeier/astropy,mhvk/astropy,saimn/astropy,saimn/astropy,StuartLittlefair/astropy,larrybradley/astropy,pllim/astropy,dhomeier/astropy,pllim/astropy,dhomeier/astropy,dhomeier/astropy,lpsinger/astropy,astropy/astropy,dhomeier/astropy,mhvk/astropy,lpsinger/astropy,pllim/astropy,astropy/astropy,pllim/astropy,saimn/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,lpsinger/astropy,pllim/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,lpsinger/astropy,astropy/astropy,StuartLittlefair/astropy