code: def generate_json_schema(obj)
  
        # JSON Schema spec: http://json-schema.org/latest/json-schema-validation.html
        schema_hash = {}
        schema_hash['$schema'] = @site.config['json_schema_schema_uri']
        schema_hash['title'] = @title if @title
        schema_hash['description'] = Jekyll::sanatize_json_string(obj['description']) if obj.include?('description')
        schema_hash['type'] = 'object'
  
        required_properties = []
        schema_hash['properties'] = DeepClone.clone obj['body']['application/x-www-form-urlencoded']['formParameters']
        schema_hash['properties'].each do |name, param|
          if param.include?('required')
            required_properties << name if param['required'] == true
            param.delete('required')
          end
  
          if param.include?('description')
            param['description'] = Jekyll::sanatize_json_string(param['description']) 
          end
  
          # Repeat and displayName are not supported keywords in JSON Schema
          param.delete('repeat')
          param.delete('displayName')
        end
        schema_hash['required'] = required_properties if not required_properties.empty?
        
        JSON.pretty_generate(schema_hash)
      end
docs: Creates JSON Schema - as a string - based on obj['body']['application/x-www-form-urlencoded']['formParameters']