You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: schema_normalization.rb
    path of file: ./repos/avro/lang/ruby/lib/avro
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
# L
    
    def normalize_schema(schema)
      type = schema.type_sym.to_s

      if Schema::NAMED_TYPES.include?(type)
        if @processed_names.include?(schema.name)
          return schema.name
        else
          @processed_names << schema.name
        end