```ruby
# typed: true
# frozen_string_literal: true

require "forwardable"
require "uri"

module RuboCop
  module Cop
    module Cask
      # This cop checks for version.before_comma and version.after_comma
      class UrlLegacyCommaSeparators < Base
        include OnUrlStanza
        extend AutoCorrector

        MSG_CSV = "Use 'version.csv.first' instead of 'version.before_comma' and 'version.csv.second' instead of 'version.after_comma'."

        def on_url_stanza(stanza)
          url_node = stanza.stanza_node.first_argument

          legacy_comma_separator_pattern = /version.(before|after)_comma/

          url = url_node.source

          return unless url.match?(legacy_comma_separator_pattern)

          corrected_url = url.sub("before_comma", "csv.first")&.sub("after_comma", "csv.second")

          add_offense(url_node.loc.expression, message: format(MSG_CSV, url: url)) do |corrector|
            corrector.replace(url_node.source_range, corrected_url)
          end
        end
      end
    end
  end
end
```

Add check for url :block
user
```ruby
# typed: true
# frozen_string_literal: true

require "forwardable"
require "uri"

module RuboCop
  module Cop
    module Cask
      # This cop checks for version.before_comma and version.after_comma
      class UrlLegacyCommaSeparators < Base
        include OnUrlStanza
        extend AutoCorrector

        MSG_CSV = "Use 'version.csv.first' instead of 'version.before_comma' and 'version.csv.second' instead of 'version.after_comma'."

        def on_url_stanza(stanza)       
          return if stanza.stanza_node.type == :block
          
          url_node = stanza.stanza_node.first_argument

          legacy_comma_separator_pattern = /version.(before|after)_comma/

          url = url_node.source

          return unless url.match?(legacy_comma_separator_pattern)

          corrected_url = url.sub("before_comma", "csv.first")&.sub("after_comma", "csv.second")

          add_offense(url_node.loc.expression, message: format(MSG_CSV, url: url)) do |corrector|
            corrector.replace(url_node.source_range, corrected_url)
          end
        end
      end
    end
  end
end
```
assistant