class_docstr: Simple handler of SEADAS L2 files.
code: def _platform_name(self):
      platform = self[self.platform_attr_name]
      platform_dict = {
          "NPP": "Suomi-NPP",
          "JPSS-1": "NOAA-20",
          "JPSS-2": "NOAA-21",
      }
      return platform_dict.get(platform, platform)
  
imports: from datetime import datetime
  from .hdf4_utils import HDF4FileHandler
  from .netcdf_utils import NetCDF4FileHandler
label_desc: Use image node_id 4 for calling the _SEADASL2Base obj's underlying member method code with example usage: obj._platform_name() and returns: platform_dict