Type Alias ExtractVariables<Query>

ExtractVariables: Query extends Variable<infer VType, infer VName>
    ? { [key in VName]: GetVariableType<VType> }
    : Query extends [infer Inputs, infer Outputs]
        ? ExtractVariablesDeep<Inputs> & ExtractVariables<Outputs>
        : Query extends string
        | number
        | boolean
        | (string | number | boolean)[]
            ? {}
            : UnionToIntersection<
                {
                    [K in keyof Query]: WithOptionalNullables<
                        ExtractVariables<Query[K]>,
                    >
                }[keyof Query],
            >