Class Sabre\DAV\File

`abstract`
`extends`	`Node`
`implements`	`IFile`

File class.

This is a helper class, that should aid in getting file classes setup. Most of its methods are implemented, and throw permission denied exceptions

Sabre\DAV\Node implements INode
- Sabre\DAV\File implements IFile
  - Sabre\CalDAV\CalendarObject implements ICalendarObject, IACL uses ACLTrait

Methods
`public`	`put(string\|resource $data): string\|null` Replaces the contents of the file. Replaces the contents of the file. The data argument is a readable stream resource. After a successful put operation, you may choose to return an ETag. The etag must always be surrounded by double-quotes. These quotes must appear in the actual string you're returning. Clients may use the ETag from a PUT request to later on make sure that when they update the file, the contents haven't changed in the mean time. If you don't plan to store the file byte-by-byte, and you return a different object on a subsequent GET you are strongly recommended to not return an ETag, and just return null. Overriden by `Sabre\CalDAV\CalendarObject::put()` Implements `Sabre\DAV\IFile::put()`	#
`public`	`get(): mixed` Returns the data. Returns the data. This method may either return a string or a readable stream resource Overriden by `Sabre\CalDAV\CalendarObject::get()` Implements `Sabre\DAV\IFile::get()`	#
`public`	`getSize(): int` Returns the size of the file, in bytes. Returns the size of the file, in bytes. Overriden by `Sabre\CalDAV\CalendarObject::getSize()` Implements `Sabre\DAV\IFile::getSize()`	#
`public`	`getETag(): string\|null` Returns the ETag for a file. Returns the ETag for a file. An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change. The ETag is an arbitrary string, but MUST be surrounded by double-quotes. Return null if the ETag can not effectively be determined Overriden by `Sabre\CalDAV\CalendarObject::getETag()` Implements `Sabre\DAV\IFile::getETag()`	#
`public`	`getContentType(): string\|null` Returns the mime-type for a file. Returns the mime-type for a file. If null is returned, we'll assume application/octet-stream Overriden by `Sabre\CalDAV\CalendarObject::getContentType()` Implements `Sabre\DAV\IFile::getContentType()`	#

Methods inherited from Sabre\DAV\Node
`getLastModified(), delete(), setName()`