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The C and C++ Include Header Files

cat -n /usr/include/python3.14/internal/pycore_interpolation.h

     1	#ifndef Py_INTERNAL_INTERPOLATION_H
     2	#define Py_INTERNAL_INTERPOLATION_H
     3	
     4	#ifdef __cplusplus
     5	extern "C" {
     6	#endif
     7	
     8	#ifndef Py_BUILD_CORE
     9	#  error "this header requires Py_BUILD_CORE define"
    10	#endif
    11	
    12	extern PyTypeObject _PyInterpolation_Type;
    13	
    14	#define _PyInterpolation_CheckExact(op) Py_IS_TYPE((op), &_PyInterpolation_Type)
    15	
    16	PyAPI_FUNC(PyObject *) _PyInterpolation_Build(PyObject *value, PyObject *str,
    17	                                              int conversion, PyObject *format_spec);
    18	
    19	extern PyStatus _PyInterpolation_InitTypes(PyInterpreterState *interp);
    20	extern PyObject *_PyInterpolation_GetValueRef(PyObject *interpolation);
    21	
    22	#ifdef __cplusplus
    23	}
    24	#endif
    25	
    26	#endif