add comments for intellibility

app/services/importer/get_ashby_fields.rb

@@ -1,6 +1,12 @@
 # frozen_string_literal: true
 
 module Importer
+  # Calls the base API class with options specific to the ATS
+  # Options are a fixed list limited to the below
+  # One-line methods are mostly for matching the generic structure to the particular API structure
+  # Ashby has always 1x ApplicationForm (JSON) and can have many SurveyForms (Array)
+  # StandardFields replaces the ID with our structure of JSON fields for each of the StandardFields found
+  # TYPES maps the Ashby field types to our standard field types
   class GetAshbyFields < GetApiFields
     def initialize(job, data)
       options = {
@@ -9,8 +15,6 @@ def initialize(job, data)
         standard_fields: STANDARD_FIELDS,
         types: TYPES
       }
-      @section_index = nil
-
       super(job, data, options)
     end
 

app/services/importer/get_greenhouse_fields.rb

@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 module Importer
+  # company_id is the ATS identifier for the company
+  # Needs the company_id to fetch the education options
   class GetGreenhouseFields < GetApiFields
     def initialize(job, data)
       @company_id = job.company.ats_identifier