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cdef extern from "Python.h":
ctypedef void PyObject
ctypedef void PyTypeObject
# The C structure of the objects used to describe built-in types.
############################################################################
# 7.1.1 Type Objects
############################################################################
# PyObject* PyType_Type
# This is the type object for type objects; it is the same object
# as type and types.TypeType in the Python layer.
bint PyType_Check(object o)
# Return true if the object o is a type object, including
# instances of types derived from the standard type object. Return
# false in all other cases.
bint PyType_CheckExact(object o)
# Return true if the object o is a type object, but not a subtype
# of the standard type object. Return false in all other
# cases.
bint PyType_HasFeature(object o, int feature)
# Return true if the type object o sets the feature feature. Type
# features are denoted by single bit flags.
bint PyType_IS_GC(object o)
# Return true if the type object includes support for the cycle
# detector; this tests the type flag Py_TPFLAGS_HAVE_GC.
bint PyType_IsSubtype(object a, object b)
# Return true if a is a subtype of b.
object PyType_GenericAlloc(object type, Py_ssize_t nitems)
# Return value: New reference.
object PyType_GenericNew(object type, object args, object kwds)
# Return value: New reference.
bint PyType_Ready(object type)
# Finalize a type object. This should be called on all type
# objects to finish their initialization. This function is
# responsible for adding inherited slots from a type's base
# class. Return 0 on success, or return -1 and sets an exception
# on error.
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