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diff --git a/scripts/external_libs/zmq/backend/cython/context.pxd b/scripts/external_libs/zmq/backend/cython/context.pxd
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+"""0MQ Context class declaration."""
+
+#
+# Copyright (c) 2010-2011 Brian E. Granger & Min Ragan-Kelley
+#
+# This file is part of pyzmq.
+#
+# pyzmq is free software; you can redistribute it and/or modify it under
+# the terms of the Lesser GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# pyzmq is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# Lesser GNU General Public License for more details.
+#
+# You should have received a copy of the Lesser GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+#-----------------------------------------------------------------------------
+# Code
+#-----------------------------------------------------------------------------
+
+cdef class Context:
+
+ cdef object __weakref__ # enable weakref
+ cdef void *handle # The C handle for the underlying zmq object.
+ cdef bint _shadow # whether the Context is a shadow wrapper of another
+ cdef void **_sockets # A C-array containg socket handles
+ cdef size_t _n_sockets # the number of sockets
+ cdef size_t _max_sockets # the size of the _sockets array
+ cdef int _pid # the pid of the process which created me (for fork safety)
+
+ cdef public bint closed # bool property for a closed context.
+ cdef inline int _term(self)
+ # helpers for events on _sockets in Socket.__cinit__()/close()
+ cdef inline void _add_socket(self, void* handle)
+ cdef inline void _remove_socket(self, void* handle)
+