Performs all trackbacks.

Check content for video and audio links to add as enclosures.

Generates a string of attributes by applying to the current block being rendered all of the features that the block supports.

Retrieves an array of media states from an attachment.

Determines whether the value is an acceptable type for GD image functions.

Get the size of a directory recursively.

Builds the definition for a single sidebar and returns the ID.

Adds Application Passwords info to the REST API index.

Checks for errors when using application password-based authentication.

Collects the status of authenticating with an application password.