sure/lib/generators/provider/family/templates/connectable_concern.rb.tt

module Family::<%= class_name %>Connectable
  extend ActiveSupport::Concern

  included do
    has_many :<%= file_name %>_items, dependent: :destroy
  end

  def can_connect_<%= file_name %>?
    # Families can configure their own <%= class_name %> credentials
    true
  end

<%
  # Build method parameters: required params (secrets) come first, then optional params
  required_params = parsed_fields.select { |f| f[:secret] }.map { |f| "#{f[:name]}:" }
  optional_params = parsed_fields.reject { |f| f[:secret] }.map { |f| "#{f[:name]}: nil" }
  all_params = (required_params + optional_params + ["item_name: nil"]).join(", ")
-%>
  def create_<%= file_name %>_item!(<%= all_params %>)
    <%= file_name %>_item = <%= file_name %>_items.create!(
      name: item_name || "<%= class_name.titleize %> Connection"<%= parsed_fields.map { |f| ",\n      #{f[:name]}: #{f[:name]}" }.join("") %>
    )

    <%= file_name %>_item.sync_later

    <%= file_name %>_item
  end

  def has_<%= file_name %>_credentials?
<% primary_secret = parsed_fields.find { |f| f[:secret] }&.dig(:name) -%>
<% if primary_secret -%>
    <%= file_name %>_items.where.not(<%= primary_secret %>: nil).exists?
<% else -%>
    <%= file_name %>_items.exists?
<% end -%>
  end
end