Type Alias: OutputFromInput

type OutputFromInput = 
  | {
  input: string;
  kind: "schema";
  output: string;
}
  | {
  input: string;
  key: string;
  kind: "keys";
  output: string;
};

An output field whose shape a call's input gives: schema, the output at output is what the JSON Schema the input holds at input describes; keys, the output at output has a member for each item of the input's array at input, named by the item's key field, shaped as the output schema's additionalProperties there. Both as JSON Pointers.