code: def _convert_to_hashable_dtypes(cls, dtypes: pd.Series):
      dtypes = dict(
          (name, dtype) if np.issubdtype(dtype, int) else (name, str)
          for name, dtype in dtypes.iteritems()
      )
      return dtypes
  
imports: from typing import Union, List, Any
  import numpy
  import pandas
  from ...config import options
  from ...core import OutputType
  from ...core.context import Context
  from ...lib.bloom_filter import BloomFilter
  from ...serialization.serializables import AnyField, Int64Field, Float64Field, StringField
  from ...None import opcodes
  from ...typing import TileableType
  from ..operands import DataFrameOperandMixin, DataFrameOperand
  from ..utils import parse_index
label_desc: Use image node_id 9 for calling the DataFrameBloomFilter obj's underlying member method code with example usage: obj._convert_to_hashable_dtypes(cls, dtypes) and returns: dtypes