Registers theme support for a given feature.

Hooks WP’s native database-based comment-flood check.

Registers default REST API routes.

Performs trackbacks.

Filters the default value for the option.

Retrieves taxonomies attached to given the attachment.

Get all available languages based on the presence of *.mo files in a given directory.

Gets the sites a user belongs to.

Retrieve path of category template in current or parent template.

Retrieves the markup for a custom header.