text: #ifndef Py_LIMITED_API
  #ifndef Py_INTERNAL_ACCU_H
  #define Py_INTERNAL_ACCU_H
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /*** This is a private API for use by the interpreter and the stdlib.
   *** Its definition may be changed or removed at any moment.
   ***/
  
  #ifndef Py_BUILD_CORE
  #  error "this header requires Py_BUILD_CORE define"
  #endif
  
  /*
   * A two-level accumulator of unicode objects that avoids both the overhead
   * of keeping a huge number of small separate objects, and the quadratic
   * behaviour of using a naive repeated concatenation scheme.
   */
  
  #undef small /* defined by some Windows headers */
  
  typedef struct {
      PyObject *large;  /* A list of previously accumulated large strings */
      PyObject *small;  /* Pending small strings */
  } _PyAccu;
  
  PyAPI_FUNC(int) _PyAccu_Init(_PyAccu *acc);
  PyAPI_FUNC(int) _PyAccu_Accumulate(_PyAccu *acc, PyObject *unicode);
  PyAPI_FUNC(PyObject *) _PyAccu_FinishAsList(_PyAccu *acc);
  PyAPI_FUNC(PyObject *) _PyAccu_Finish(_PyAccu *acc);
  PyAPI_FUNC(void) _PyAccu_Destroy(_PyAccu *acc);
  
  #ifdef __cplusplus
  }
  #endif
  #endif /* !Py_INTERNAL_ACCU_H */
  #endif /* !Py_LIMITED_API */
  