github.com/ethereum-optimism/optimism@v1.7.2/packages/sdk/src/utils/type-utils.ts (about)

     1  /**
     2   * Utility type for deep partials.
     3   */
     4  export type DeepPartial<T> = {
     5    [P in keyof T]?: DeepPartial<T[P]>
     6  }