The extraction task definition: a plain-language description of what to extract, plus few-shot examples showing the expected output.
There is no schema DSL and no fine-tuned model — the template is rendered
into a few-shot prompt by LangExtract.Prompt.Builder, and the examples
are what teach the model the class vocabulary, span granularity,
attributes, and output format.
Build templates with LangExtract.template!/2, which accepts plain maps
for examples and validates them against the production aligner;
LangExtract.template/2 is the non-raising twin for runtime task
definitions (user-uploaded or JSON-loaded). The struct is public for
pattern matching and introspection.
Summary
Types
@type t() :: %LangExtract.Template{ description: String.t(), examples: [LangExtract.Template.Example.t()] }