Type Alias Option<O>

Option: {
    readonly [K in keyof O]: { [P in K]: O[P] } & {
        [P in Exclude<keyof O, K>]?: never
    }
}[keyof O]

Relay option.

Represents a specific option with exactly one active property from the options. TypeScript enforces mutual exclusivity, preventing invalid multi-option values at compile time.