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Create a pool key out of a request context dictionary.
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alternate callables to ``key_fn_by_scheme``.
:param key_class:
The class to use when constructing the key. This should be a namedtuple
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Allows for arbitrary requests while transparently keeping track of
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Headers to include with all requests, unless other headers are given
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Additional parameters are used to create fresh
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Create a new :class:`ConnectionPool` based on host, port, scheme, and
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Empty our store of pools and direct them all to close.
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Get a :class:`ConnectionPool` based on the host, port, and scheme.
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Get a :class:`ConnectionPool` based on the request context.
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Get a :class:`ConnectionPool` based on the provided pool key.
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Merge a dictionary of override values for self.connection_pool_kw.
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Same as :meth:`urllib3.connectionpool.HTTPConnectionPool.urlopen`
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Behaves just like :class:`PoolManager`, but sends all requests through
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A dictionary contaning headers that will be sent to the proxy. In case
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1
>>> r3 = proxy.request('GET', 'https://httpbin.org/')
>>> r4 = proxy.request('GET', 'https://twitter.com/')
>>> len(proxy.pools)
3
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