`core.sync.rwmutex.read_write_mutex.writer` - multiple declarations

Function ReadWriteMutex.writer

Gets an object representing the writer lock for the associated mutex.

ReadWriteMutex.Writer writer() @property;

A writer sub-mutex.

This class can be considered a mutex in its own right, and is used to negotiate a write lock for the enclosing mutex.

Name	Description
`this`	Initializes a read/write mutex `writer` proxy `object`.

Name	Description
`lock`	Acquires a write `lock` on the enclosing mutex.
`tryLock`	Attempts to acquire a write `lock` on the enclosing mutex. If one can be obtained without blocking, the `lock` is acquired and true is returned. If not, the `lock` is not acquired and false is returned.
`unlock`	Releases a write `lock` on the enclosing mutex.