code: def top_k_unstable(values, k, sort_keys=None, *, memory_pool=None):
      """
      Select the indices of the top-k ordered elements from array- or table-like
      data.
  
      This is a specialization for :func:`select_k_unstable`. Output is not
      guaranteed to be stable.
  
      Parameters
      ----------
      values : Array, ChunkedArray, RecordBatch, or Table
          Data to sort and get top indices from.
      k : int
          The number of `k` elements to keep.
      sort_keys : List-like
          Column key names to order by when input is table-like data.
      memory_pool : MemoryPool, optional
          If not passed, will allocate memory from the default memory pool.
  
      Returns
      -------
      result : Array
          Indices of the top-k ordered elements
  
      Examples
      --------
      >>> import pyarrow as pa
      >>> import pyarrow.compute as pc
      >>> arr = pa.array(["a", "b", "c", None, "e", "f"])
      >>> pc.top_k_unstable(arr, k=3)
      <pyarrow.lib.UInt64Array object at ...>
      [
        5,
        4,
        2
      ]
      """
      if sort_keys is None:
          sort_keys = []
      if isinstance(values, (pa.Array, pa.ChunkedArray)):
          sort_keys.append(("dummy", "descending"))
      else:
          sort_keys = map(
              lambda key_name: (key_name, "descending"), sort_keys
          )
      options = SelectKOptions(k, sort_keys)
      return call_function(
          "select_k_unstable", [values], options, memory_pool
      )
  
imports: from pyarrow._compute import Function, FunctionOptions, FunctionRegistry, HashAggregateFunction, HashAggregateKernel, Kernel, ScalarAggregateFunction, ScalarAggregateKernel, ScalarFunction, ScalarKernel, VectorFunction, VectorKernel, ArraySortOptions, AssumeTimezoneOptions, CastOptions, CountOptions, CumulativeOptions, CumulativeSumOptions, DayOfWeekOptions, DictionaryEncodeOptions, RunEndEncodeOptions, ElementWiseAggregateOptions, ExtractRegexOptions, FilterOptions, IndexOptions, JoinOptions, ListSliceOptions, MakeStructOptions, MapLookupOptions, MatchSubstringOptions, ModeOptions, NullOptions, PadOptions, PairwiseOptions, PartitionNthOptions, QuantileOptions, RandomOptions, RankOptions, ReplaceSliceOptions, ReplaceSubstringOptions, RoundBinaryOptions, RoundOptions, RoundTemporalOptions, RoundToMultipleOptions, ScalarAggregateOptions, SelectKOptions, SetLookupOptions, SliceOptions, SortOptions, SplitOptions, SplitPatternOptions, StrftimeOptions, StrptimeOptions, StructFieldOptions, TakeOptions, TDigestOptions, TrimOptions, Utf8NormalizeOptions, VarianceOptions, WeekOptions, call_function, function_registry, get_function, list_functions, call_tabular_function, register_scalar_function, register_tabular_function, register_aggregate_function, register_vector_function, UdfContext, Expression
  from collections import namedtuple
  import inspect
  from textwrap import dedent
  import warnings
  import pyarrow
  from pyarrow import _compute_docstrings
  from pyarrow.vendored import docscrape
label_desc: Use image node_id 14 for calling a global function with example usage: top_k_unstable(values, k, sort_keys) and returns: call_function