Change get_interpolation_method_and_key to private
Change get_interpolation_method_and_key to private

johnduarte/hiera,MikaelSmith/hiera,hlindberg/hiera,johnduarte/hiera,Iristyle/hiera,MikaelSmith/hiera,johnduarte/hiera,hlindberg/hiera,MikaelSmith/hiera,Iristyle/hiera,hlindberg/hiera,ferventcoder/hiera,ferventcoder/hiera,Iristyle/hiera,ferventcoder/hiera