code: def is_unsigned_integer_dtype(arr_or_dtype):
      """
      Check whether the provided array or dtype is of an unsigned integer dtype.
  
      .. versionchanged:: 0.24.0
  
         The nullable Integer dtypes (e.g. pandas.UInt64Dtype) are also
         considered as integer by this function.
  
      Parameters
      ----------
      arr_or_dtype : array-like
          The array or dtype to check.
  
      Returns
      -------
      boolean : Whether or not the array or dtype is of an
                unsigned integer dtype.
  
      Examples
      --------
      >>> is_unsigned_integer_dtype(str)
      False
      >>> is_unsigned_integer_dtype(int)  # signed
      False
      >>> is_unsigned_integer_dtype(float)
      False
      >>> is_unsigned_integer_dtype(np.uint64)
      True
      >>> is_unsigned_integer_dtype('uint8')
      True
      >>> is_unsigned_integer_dtype('UInt8')
      True
      >>> is_unsigned_integer_dtype(pd.UInt8Dtype)
      True
      >>> is_unsigned_integer_dtype(np.array(['a', 'b']))
      False
      >>> is_unsigned_integer_dtype(pd.Series([1, 2]))  # signed
      False
      >>> is_unsigned_integer_dtype(pd.Index([1, 2.]))  # float
      False
      >>> is_unsigned_integer_dtype(np.array([1, 2], dtype=np.uint32))
      True
      """
      return _is_dtype_type(
          arr_or_dtype, classes_and_not_datetimelike(np.unsignedinteger)
      )
  
imports: import warnings
  import numpy
  from pandas._libs import algos, lib
  from pandas._libs.tslibs import conversion
  from pandas.compat import PY3, PY36, string_types
  from pandas.core.dtypes.dtypes import CategoricalDtype, DatetimeTZDtype, ExtensionDtype, IntervalDtype, PandasExtensionDtype, PeriodDtype, registry
  from pandas.core.dtypes.generic import ABCCategorical, ABCDateOffset, ABCDatetimeIndex, ABCIndexClass, ABCPeriodArray, ABCPeriodIndex, ABCSeries
  from pandas.core.dtypes.inference import is_array_like, is_bool, is_complex, is_decimal, is_dict_like, is_file_like, is_float, is_hashable, is_integer, is_interval, is_iterator, is_list_like, is_named_tuple, is_nested_list_like, is_number, is_re, is_re_compilable, is_scalar, is_sequence, is_string_like
label_desc: Use image node_id 28 for calling a global function with example usage: is_unsigned_integer_dtype(arr_or_dtype) and returns: _is_dtype_type