class_docstr: Eps level 1b reader for AVHRR data.
docstr: Get an angle dataarray.
code: def _get_angle_dataarray(self, key):
      """Get an angle dataarray."""
      arr_index = {
          "solar_azimuth_angle": 0,
          "solar_zenith_angle": 1,
          "satellite_azimuth_angle": 2,
          "satellite_zenith_angle": 3,
      }[key["name"]]
      data = self.get_full_angles()[arr_index]
      return create_xarray(data)
  
imports: import functools
  import logging
  import dask.array
  import numpy
  import xarray
  from dask.delayed import delayed
  from pyresample.geometry import SwathDefinition
  from satpy._compat import cached_property
  from satpy._config import get_config_path
  from satpy.readers.file_handlers import BaseFileHandler
  from satpy.readers.xmlformat import XMLFormat
  from satpy.utils import get_legacy_chunk_size
label_desc: Use image node_id 12 for calling the EPSAVHRRFile obj's underlying member method code with example usage: obj._get_angle_dataarray(key) and returns: create_xarray