class_docstr: A base file handler for the AAPP level-1 formats.
class_docstr_tok: ["A","base","file","handler","for","the","AAPP","level-1","formats","."]
docstr: Read the data.
code: def read(self):
      """Read the data."""
      tic = datetime.now()
      header = np.memmap(
          self.filename, dtype=self._header_type, mode="r", shape=(1,)
      )
      data = np.memmap(
          self.filename,
          dtype=self._scan_type,
          offset=self._header_offset,
          mode="r",
      )
      logger.debug("Reading time %s", str(datetime.now() - tic))
  
      self._header = header
      self._data = data
  
imports: import functools
  import logging
  from datetime import datetime, timedelta
  import dask.array
  import numpy
  import xarray
  from dask import delayed
  from satpy.readers.file_handlers import BaseFileHandler
  from satpy.utils import get_chunk_size_limit
label_desc: Use image node_id 7 for calling the AAPPL1BaseFileHandler obj's underlying member method code with example usage: obj.read() without return types