Core class used to implement displaying installed plugins in a list table.

Constructor.

Core class used to implement displaying post comments in a list table.

Core class used to implement displaying posts in a list table.

Constructor.

Given a top level page ID, display the nested hierarchy of sub-pages together with paging support

Outputs the hidden row displayed when inline editing

Is the query a 404 (returns no results)?

Is the query for an existing archive page?

Is the query for an existing attachment page?