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#
# Licensed under the Apache License, Version 2.0 (the "License");
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#     http://www.apache.org/licenses/LICENSE-2.0
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"""Public enums used across BigQuery DataFrames."""

# NOTE: This module should not depend on any others in the package.


import enum


class OrderingMode(enum.Enum):
    """Values used to determine the ordering mode.

    Default is 'strict'.
    """

    STRICT = "strict"
    PARTIAL = "partial"


class DefaultIndexKind(enum.Enum):
    """Sentinel values used to override default indexing behavior."""

    #: Use consecutive integers as the index. This is ``0``, ``1``, ``2``, ...,
    #: ``n - 3``, ``n - 2``, ``n - 1``, where ``n`` is the number of items in
    #: the index.
    SEQUENTIAL_INT64 = enum.auto()

    # A completely null index incapable of indexing or alignment.
    NULL = enum.auto()
