```ruby
require "plek"
require "action_view"

class AbstractDocumentPublicationAlertFormatter
  def initialize(dependencies = {})
    @document = dependencies.fetch(:document)
    @url_maker = dependencies.fetch(:url_maker)
  end

  def name
    raise NotImplementedError
  end

  def tags
    arrayified_extra_fields.merge(
      format: [document.document_type]
    )
  end

  def subject
    "#{name}: #{document.title}"
  end

  def body
    view_renderer.render(
      template: "email_alerts/publication.html",
      locals: {
        human_document_type: name,
        document_noun: document_noun,
        updated_or_published: updated_or_published_text,
        document_title: document.title,
        document_summary: document.summary,
        document_url: url_maker.published_specialist_document_path(document),
      }
    )
  end

private
  attr_reader(
    :document,
    :url_maker,
  )

  def document_noun
    raise NotImplementedError
  end

  def slug_prefix
    document.slug.split("/").first
  end

  def view_renderer
    ActionView::Base.new("app/views")
  end

  def updated_or_published_text
    document.version_number == 1 ? "published" : "updated"
  end

  def extra_fields
    document.extra_fields
  end

  def arrayified_extra_fields
    hash = {}
    extra_fields.each { |key, value| hash[key] = value.is_a?(Array) ? value : [value] }
    hash
  end
end
```

Update call to render to new syntax
user
```ruby
require "plek"
require "action_view"

class AbstractDocumentPublicationAlertFormatter
  def initialize(dependencies = {})
    @document = dependencies.fetch(:document)
    @url_maker = dependencies.fetch(:url_maker)
  end

  def name
    raise NotImplementedError
  end

  def tags
    arrayified_extra_fields.merge(
      format: [document.document_type]
    )
  end

  def subject
    "#{name}: #{document.title}"
  end

  def body
    view_renderer.render(
      template: "email_alerts/publication",
      formats: ["html"],
      locals: {
        human_document_type: name,
        document_noun: document_noun,
        updated_or_published: updated_or_published_text,
        document_title: document.title,
        document_summary: document.summary,
        document_url: url_maker.published_specialist_document_path(document),
      }
    )
  end

private
  attr_reader(
    :document,
    :url_maker,
  )

  def document_noun
    raise NotImplementedError
  end

  def slug_prefix
    document.slug.split("/").first
  end

  def view_renderer
    ActionView::Base.new("app/views")
  end

  def updated_or_published_text
    document.version_number == 1 ? "published" : "updated"
  end

  def extra_fields
    document.extra_fields
  end

  def arrayified_extra_fields
    hash = {}
    extra_fields.each { |key, value| hash[key] = value.is_a?(Array) ? value : [value] }
    hash
  end
end
```
assistant