class_docstr: Class to add epoch selection and metadata to certain classes.
class_docstr_tok: ["Class","to","add","epoch","selection","and","metadata","to","certain","classes","."]
docstr: Get the metadata.
docstr_tok: ["Get","the","metadata","."]
code: def metadata(self):
      """Get the metadata."""
      return self._metadata
  
imports: import json
  import logging
  from collections import OrderedDict
  from copy import deepcopy
  import numpy
  from ._logging import verbose, warn
  from .check import _check_pandas_installed, _check_preload, _validate_type
  from .numerics import _time_mask, object_hash, object_size
label_desc: Use image node_id 10 for calling the GetEpochsMixin obj's underlying member method code with example usage: obj.metadata() and returns: self