text: # TODO
  
  
  class DatasourceBaseError(Exception):
      pass
  
  
  class DatasourceBadObjectError(DatasourceBaseError):
      pass
  
  
  class DatasourceObjectParseError(DatasourceBaseError):
      pass
  
  
  class DatasourceBadParameterTypeError(DatasourceBaseError):
      """Raised when a parameter or field is set with improper type."""
      pass
  