Declares a reusable AsyncAPI Schema Object (JSON Schema draft-07).

Use it inside a module:

defmodule MyApp.Schemas do
  use AsyncApiSpex.Schema,
    name: "OrderCreatedV1",
    schema: %{type: "object", required: ["id"], properties: %{id: %{type: "string"}}}
end

This defines schema/0 returning the schema map and __async_api_schema__/0 returning {name, schema}. AsyncApiSpex.resolve/1 moves a schema module used from a message into components.schemas and replaces the use with a reference.

name must be a string literal matching ~r/\A[A-Za-z0-9_.-]+\z/; schema must be a map literal. Both requirements raise ArgumentError at compile time, as does any unknown option.