FileSystemEntity renameSync(
String newPath
)

Synchronously renames this file system entity. Returns a FileSystemEntity instance for the renamed entity.

If newPath identifies an existing entity of the same type, that entity is replaced. If newPath identifies an existing entity of a different type, the operation fails and an exception is thrown.

Source

/**
* Synchronously renames this file system entity. Returns a [FileSystemEntity]
* instance for the renamed entity.
*
* If [newPath] identifies an existing entity of the same type, that entity
* is replaced. If [newPath] identifies an existing entity of a different
* type, the operation fails and an exception is thrown.
*/
  FileSystemEntity renameSync(String newPath);