code: def verify(self, verify_locations: str) -> None:
          
          # Ensure the file exists
          with open(verify_locations):
              pass
  
          try:
              self._ocsp_response.basic_verify(verify_locations)
          except _nassl.OpenSSLError as e:
              if 'certificate verify error' in str(e):
                  raise OcspResponseNotTrustedError(verify_locations)
              raise
docs: Verify that the OCSP response is trusted.
  
          Args:
              verify_locations: The file path to a trust store containing pem-formatted certificates, to be used for
              validating the OCSP response.
  
          Raises OcspResponseNotTrustedError if the validation failed ie. the OCSP response is not trusted.