Function hipGraphExternalSemaphoresSignalNodeGetParams 

pub unsafe extern "C" fn hipGraphExternalSemaphoresSignalNodeGetParams(
    hNode: hipGraphNode_t,
    params_out: *mut hipExternalSemaphoreSignalNodeParams,
) -> hipError_t

@brief Returns external semaphore signal node params.

@param [in] hNode - Node from the graph from which graphExec was instantiated. @param [out] params_out - Pointer to params. @returns #hipSuccess, #hipErrorInvalidValue