Module extraction 

Extraction template, request, and result types

Structs

ExtractionMetadata

Metadata about an extraction result

ExtractionRequest

Request to extract data from a page using a template

ExtractionResult

Result of a successful extraction

ExtractionTemplate

A reusable extraction template defining how to extract data from a page

Region

A named region within a template to extract data from

RegionStatus

Status of extraction for a single region

TemplateMetadata

Metadata about a template