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    jinja2.sandbox
    ~~~~~~~~~~~~~~

    Adds a sandbox layer to Jinja as it was the default behavior in the old
    Jinja 1 releases.  This sandbox is slightly different from Jinja 1 as the
    default behavior is easier to use.

    The behavior can be changed by subclassing the environment.

    :copyright: (c) 2010 by the Jinja Team.
    :license: BSD.
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Test if the attribute given is an internal python attribute.  For
    example this function returns `True` for the `func_code` attribute of
    python objects.  This is useful if the environment method
    :meth:`~SandboxedEnvironment.is_safe_attribute` is overridden.

    >>> from jinja2.sandbox import is_internal_attribute
    >>> is_internal_attribute(lambda: None, "func_code")
    True
    >>> is_internal_attribute((lambda x:x).func_code, 'co_code')
    True
    >>> is_internal_attribute(str, "upper")
    False
    tmrot
CoroutineTypetAsyncGeneratorTypet__(R\RtUNSAFE_FUNCTION_ATTRIBUTESRiRtUNSAFE_METHOD_ATTRIBUTESRBRRRR	tUNSAFE_GENERATOR_ATTRIBUTESR@R]RntUNSAFE_COROUTINE_ATTRIBUTESRotattrit!UNSAFE_ASYNC_GENERATOR_ATTRIBUTESt
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    with Python 2.6 onwards the abstract base classes `MutableSet`,
    `MutableMapping`, and `MutableSequence`.

    >>> modifies_known_mutable({}, "clear")
    True
    >>> modifies_known_mutable({}, "keys")
    False
    >>> modifies_known_mutable([], "append")
    True
    >>> modifies_known_mutable([], "index")
    False

    If called with an unsupported object (such as unicode) `False` is
    returned.

    >>> modifies_known_mutable("foo", "upper")
    False
    (t
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�Zd�Zd�Zd�Zd�Zd�ZRS(s�The sandboxed environment.  It works like the regular environment but
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    If the template tries to access insecure code a :exc:`SecurityError` is
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        same logic as the builtin one.

        The following unary operators are interceptable: ``+`` and ``-``

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																tImmutableSandboxedEnvironmentcBseZdZd�ZRS(s�Works exactly like the regular `SandboxedEnvironment` but does not
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