syncMap.Store(key, key)

v, ok := syncMap.Load(key)
if !ok {
}
v = v

syncMap.Range(func(k, v interface{}) bool {
    k = k
    v = v
    return true
})

mutex.Lock()
mutexMap[key] = key
mutex.Unlock()

mutex.Lock()
v, ok := mutexMap[key]
if !ok {
}
v = v
mutex.Unlock()

mutex.Lock()
for k, v := range mutexMap {
    k = k
    v = v
}
mutex.Unlock()

rwMutex.Lock()
rwMutexMap[key] = key
rwMutex.Unlock()

rwMutex.RLock()
v, ok := rwMutexMap[key]
if !ok {
}
v = v
rwMutex.RUnlock()

rwMutex.RLock()
for k, v := range rwMutexMap {
    k = k
    v = v
}
rwMutex.RUnlock()

cMap.Set(key, key)

v, ok := cMap.Get(key)
if !ok {
}
v = v

for i := range cMap.IterBuffered() {
    i = i
}