Function guile_sys::scm_call_7

pub unsafe extern "C" fn scm_call_7(
    proc_: SCM, 
    arg1: SCM, 
    arg2: SCM, 
    arg3: SCM, 
    arg4: SCM, 
    arg5: SCM, 
    arg6: SCM, 
    arg7: SCM
) -> SCM