# File lib/versionomy/schema/wrapper.rb, line 75
      def initialize(field_, modules_=[], aliases_={})
        @root_field = field_
        @names = @root_field._descendants_by_name
        @modules = modules_
        @aliases = {}
        aliases_.each do |k_,v_|
          k_ = k_.to_sym
          v_ = v_.to_sym
          if @names.include?(v_) && !@names.include?(k_)
            @aliases[k_] = v_
          end
        end
      end