                  schema['description'] = str(field.help_text)
              self._map_field_validators(field.validators, schema)
  
              properties[field.field_name] = schema
          return {
              'required': required,
              'properties': properties,
          }
  
      def _map_field_validators(self, validators, schema):
          """
          map field validators
 
</s> remove                     item_schema['required'] = [f for f in item_schema['required'] if f != name]
 </s> add                     if 'required' in item_schema:
                        item_schema['required'] = [f for f in item_schema['required'] if f != name]
        result = {
            'properties': properties
                  schema['description'] = str(field.help_text)
              self._map_field_validators(field.validators, schema)
  
              properties[field.field_name] = schema
        result = {
            'properties': properties
        result = {
            'properties': properties
        result = {
            'properties': properties
          }
  
      def _map_field_validators(self, validators, schema):
          """
          map field validators
keep keep keep keep replace replace replace keep keep keep keep keep
 OpenAPI: only include non-empty required property. (#6851)

Closes #6834 
rest_framework/schemas/openapi.py