text: #!/usr/bin/env python3
  
  from pysymphony.api.image import add_image, delete_image
  from pysymphony.graphql.enum.image_entity import ImageEntity
  
  from .. import SymphonyClient
  from ..common.data_class import SiteSurvey
  
  
  def add_site_survey_image(
      client: SymphonyClient, local_file_path: str, id: str
  ) -> None:
      """This function adds image to existing site survey.
  
          Args:
              local_file_path (str): local system path to the file
              id (str): site survey ID
  
          Raises:
              FailedOperationException: on operation failure
  
          Example:
              ```
              client.add_site_survey_image(
                  local_file_path="./document.pdf",
                  id="123456"
              )
              ```
      """
      add_image(client, local_file_path, ImageEntity.SITE_SURVEY, id)
  
  
  def delete_site_survey_image(client: SymphonyClient, survey: SiteSurvey) -> None:
      """This function deletes image from existing site survey.
  
          Args:
              survey ( `pyinventory.common.data_class.SiteSurvey` ): site survey object
  
          Raises:
              FailedOperationException: on operation failure
  
          Example:
              ```
              client.delete_site_survey_image(survey=survey)
              ```
      """
      source_file_key = survey.sourceFileKey
      source_file_id = survey.sourceFileId
      if source_file_key is not None:
          client.delete_file(source_file_key, False)
      if source_file_id is not None:
          delete_image(client, ImageEntity.SITE_SURVEY, survey.survey_id, source_file_id)
  