docstr: Returns the mapper of the main data loader class.
docstr_tok: ["Returns","the","mapper","of","the","main","data","loader","class","."]
code: def get_mapper(self):
      """Returns the mapper of the main data loader class."""
      return self._parent_adapter.backend.mapper
  
file_path: AmpliGraph/ampligraph/datasets/data_adapter.py
imports: import contextlib
  import tqdm
  from tensorflow.python.framework import errors
  from .graph_data_loader import GraphDataLoader, NoBackend
  from .graph_partitioner import AbstractGraphPartitioner
  from .partitioned_data_manager import get_partition_adapter
label_desc: Use image node_id 6 for calling the DataHandler obj's underlying member method code with example usage: obj.get_mapper() and returns: self