"""Multidict implementation.
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HTTP Headers and URL query string require specific data structure:
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multidict. It behaves mostly like a dict but it can have
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several values for the same key.
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"""
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from ._compat import USE_CYTHON_EXTENSIONS
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__all__ = ('MultiMapping', 'MutableMultiMapping',
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'MultiDictProxy', 'CIMultiDictProxy',
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'MultiDict', 'CIMultiDict', 'upstr', 'istr')
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__version__ = '4.5.2'
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from ._abc import MultiMapping, MutableMultiMapping
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try:
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if not USE_CYTHON_EXTENSIONS:
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raise ImportError
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from ._multidict import (MultiDictProxy,
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CIMultiDictProxy,
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MultiDict,
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CIMultiDict,
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upstr, istr)
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except ImportError: # pragma: no cover
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from ._multidict_py import (MultiDictProxy,
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CIMultiDictProxy,
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MultiDict,
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CIMultiDict,
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upstr, istr)
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