class_docstr: Fake file handler to be used by test readers.
class_docstr_tok: ["Fake","file","handler","to","be","used","by","test","readers","."]
docstr: Get sensor name from filetype configuration.
docstr_tok: ["Get","sensor","name","from","filetype","configuration","."]
code: def sensor_names(self):
      """Get sensor name from filetype configuration."""
      sensor = self.filetype_info.get("sensor", "fake_sensor")
      return {sensor}
  
imports: from contextlib import contextmanager
  from datetime import datetime
  from typing import Any
  from unittest import mock
  import dask.array
  import numpy
  from pyresample import create_area_def
  from pyresample.geometry import BaseDefinition, SwathDefinition
  from xarray import DataArray
  from satpy import Scene
  from satpy.composites import GenericCompositor, IncompatibleAreas
  from satpy.dataset import DataID, DataQuery
  from satpy.dataset.dataid import default_id_keys_config, minimal_default_keys_config
  from satpy.modifiers import ModifierBase
  from satpy.readers.file_handlers import BaseFileHandler
label_desc: Use image node_id 4 for calling the FakeFileHandler obj's underlying member method code with example usage: obj.sensor_names() and returns: unknown