typedef PyObject *(*getter)(PyObject *, void *);
typedef int (*setter)(PyObject *, PyObject *, void *);

typedef struct PyGetSetDef {
    const char *name;
    getter get;
    setter set;
    const char *doc;
    void *closure;
} PyGetSetDef;

typedef PyObject *(*wrapperfunc)(PyObject *self, PyObject *args,
                                 void *wrapped);

typedef PyObject *(*wrapperfunc_kwds)(PyObject *self, PyObject *args,
                                      void *wrapped, PyObject *kwds);

struct wrapperbase {
    const char *name;
    int offset;
    void *function;
    wrapperfunc wrapper;
    const char *doc;
    int flags;
    PyObject *name_strobj;
};

/* Flags for above struct */
#define PyWrapperFlag_KEYWORDS 1 /* wrapper function takes keyword args */

/* Various kinds of descriptor objects */

/* An array of PyMemberDef structures defines the name, type and offset
   of selected members of a C structure.  These can be read by
   PyMember_GetOne() and set by PyMember_SetOne() (except if their READONLY
   flag is set).  The array must be terminated with an entry whose name
   pointer is NULL. */
typedef struct PyMemberDef {
    const char *name;
    int type;
    Py_ssize_t offset;
    int flags;
    const char *doc;
} PyMemberDef;


typedef struct {
    PyObject_HEAD
    PyTypeObject *d_type;
    PyObject *d_name;
    PyObject *d_qualname;
} PyDescrObject;

#define PyDescr_COMMON PyDescrObject d_common

#define PyDescr_TYPE(x) (((PyDescrObject *)(x))->d_type)
#define PyDescr_NAME(x) (((PyDescrObject *)(x))->d_name)

typedef struct {
    PyDescr_COMMON;
    PyMethodDef *d_method;
} PyMethodDescrObject;

typedef struct {
    PyDescr_COMMON;
    struct PyMemberDef *d_member;
} PyMemberDescrObject;

typedef struct {
    PyDescr_COMMON;
    PyGetSetDef *d_getset;
} PyGetSetDescrObject;

typedef struct {
    PyDescr_COMMON;
    struct wrapperbase *d_base;
    void *d_wrapped; /* This can be any function pointer */
} PyWrapperDescrObject;
