-#ifndef _PSI_ENGINE_H
-#define _PSI_ENGINE_H
-
-int psi_internal_type(impl_type *type);
-zend_internal_arg_info *psi_internal_arginfo(impl *impl);
-size_t psi_num_min_args(impl *impl);
-zend_long psi_zval_count(zval *zvalue);
-
-ZEND_RESULT_CODE psi_call(zend_execute_data *execute_data, zval *return_value, impl *impl);
-ZEND_RESULT_CODE psi_callback(let_callback *cb, void *retval, unsigned argc, void **argv);
-
-#endif