Returns the size of the current page.  If the current page is an attachment (like when this tag is used within the [AttachmentsIteratorTag]), it will return the attachment size.

NOTE: This tag may be quite slow when used with [RCSFileProvider].

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!Usage

<wiki:PageSize />

!Parameters

None.

!Example
{{{
The size of this page is <wiki:PageSize /> bytes.
}}}