Nomad changes

docs/snippets/elixir/llm/structured_extraction.md

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+<!-- snippet:syntax-only -->
+
+```elixir
+schema = %{
+  "type" => "object",
+  "properties" => %{
+    "title" => %{"type" => "string"},
+    "authors" => %{"type" => "array", "items" => %{"type" => "string"}},
+    "date" => %{"type" => "string"}
+  },
+  "required" => ["title", "authors", "date"],
+  "additionalProperties" => false
+}
+
+config_json =
+  Jason.encode!(%{
+    "structured_extraction" => %{
+      "schema" => schema,
+      "schema_name" => "paper_metadata",
+      "strict" => true,
+      "llm" => %{"model" => "openai/gpt-4o-mini"}
+    }
+  })
+
+{:ok, json} = Kreuzberg.extract_file_async("paper.pdf", nil, config_json)
+result = Jason.decode!(json)
+
+case result["structured_output"] do
+  nil -> IO.puts("no structured output")
+  output -> IO.inspect(output, label: "structured")
+end
+```