code: def test__get_gdal_dtype__int64():
      if gdal_version.at_least("3.5"):
          assert _get_gdal_dtype("int64") == 13
      else:
          with pytest.raises(TypeError, match="Unsupported data type"):
              _get_gdal_dtype("int64")
  
imports: import numpy
  import pytest
  from .conftest import gdal_version
  import rasterio
  from rasterio import ubyte, uint8, uint16, uint32, uint64, int8, int16, int32, int64, float32, float64, complex_, complex_int16
  from rasterio.dtypes import _gdal_typename, is_ndarray, check_dtype, get_minimum_dtype, can_cast_dtype, validate_dtype, _is_complex_int, _getnpdtype, _get_gdal_dtype
label_desc: Use image node_id 17 for calling a global function with example usage: test__get_gdal_dtype__int64() without return types