Split the monstrous C API manual files in smaller parts.

Doc/c-api/method.rst

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+.. highlightlang:: c
+
+.. _method-objects:
+
+Method Objects
+--------------
+
+.. index:: object: method
+
+There are some useful functions that are useful for working with method objects.
+
+
+.. cvar:: PyTypeObject PyMethod_Type
+
+   .. index:: single: MethodType (in module types)
+
+   This instance of :ctype:`PyTypeObject` represents the Python method type.  This
+   is exposed to Python programs as ``types.MethodType``.
+
+
+.. cfunction:: int PyMethod_Check(PyObject *o)
+
+   Return true if *o* is a method object (has type :cdata:`PyMethod_Type`).  The
+   parameter must not be *NULL*.
+
+
+.. cfunction:: PyObject* PyMethod_New(PyObject *func, PyObject *self, PyObject *class)
+
+   Return a new method object, with *func* being any callable object; this is the
+   function that will be called when the method is called.  If this method should
+   be bound to an instance, *self* should be the instance and *class* should be the
+   class of *self*, otherwise *self* should be *NULL* and *class* should be the
+   class which provides the unbound method..
+
+
+.. cfunction:: PyObject* PyMethod_Class(PyObject *meth)
+
+   Return the class object from which the method *meth* was created; if this was
+   created from an instance, it will be the class of the instance.
+
+
+.. cfunction:: PyObject* PyMethod_GET_CLASS(PyObject *meth)
+
+   Macro version of :cfunc:`PyMethod_Class` which avoids error checking.
+
+
+.. cfunction:: PyObject* PyMethod_Function(PyObject *meth)
+
+   Return the function object associated with the method *meth*.
+
+
+.. cfunction:: PyObject* PyMethod_GET_FUNCTION(PyObject *meth)
+
+   Macro version of :cfunc:`PyMethod_Function` which avoids error checking.
+
+
+.. cfunction:: PyObject* PyMethod_Self(PyObject *meth)
+
+   Return the instance associated with the method *meth* if it is bound, otherwise
+   return *NULL*.
+
+
+.. cfunction:: PyObject* PyMethod_GET_SELF(PyObject *meth)
+
+   Macro version of :cfunc:`PyMethod_Self` which avoids error checking.