code: def _arrow_dtype_mapping() -> dict:
      pa = import_optional_dependency("pyarrow")
      return {
          pa.int8(): pd.Int8Dtype(),
          pa.int16(): pd.Int16Dtype(),
          pa.int32(): pd.Int32Dtype(),
          pa.int64(): pd.Int64Dtype(),
          pa.uint8(): pd.UInt8Dtype(),
          pa.uint16(): pd.UInt16Dtype(),
          pa.uint32(): pd.UInt32Dtype(),
          pa.uint64(): pd.UInt64Dtype(),
          pa.bool_(): pd.BooleanDtype(),
          pa.string(): pd.StringDtype(),
          pa.float32(): pd.Float32Dtype(),
          pa.float64(): pd.Float64Dtype(),
      }
  
imports: from __future__ import annotations
  from pandas.compat._optional import import_optional_dependency
  import pandas
label_desc: Use image node_id 1 for calling a global function with example usage: _arrow_dtype_mapping() and returns: dict