declare module "ext:core/ops" {
  type NativeDef = import("./types.js").NativeDef;
  type NativeValue = import("./types.js").NativeValue;
  type MemoryType = import("./types.js").MemoryType;
  type MemoryValue<K extends MemoryType> = import("./types.js").MemoryValue<K>;

  export function op_ffi_dlopen(specifier: string, defs: NativeDef[]): number;
  export function op_ffi_close(id: number): undefined;
  export function op_ffi_call(id: number, index: number, args: unknown[]): NativeValue;
  export function op_ffi_call_ptr(address: bigint, def: NativeDef, args: unknown[]): NativeValue;
  export function op_ffi_call_async_begin(id: number, index: number, args: unknown[]): number;
  export function op_ffi_await(callId: number): Promise<number>;
  export function op_ffi_call_async_finish(callId: number, result: NativeDef["result"]): NativeValue;
  export function op_ffi_address_of(view: ArrayBuffer | ArrayBufferView): bigint;
  export function op_ffi_read<K extends MemoryType>(address: bigint, kind: K): MemoryValue<K>;
  export function op_ffi_read_bytes(address: bigint, length: number): Uint8Array<ArrayBuffer>;
  export function op_ffi_read_cstring(address: bigint, max: number): Uint8Array<ArrayBuffer>;
  export function op_ffi_write(address: bigint, kind: MemoryType, value: unknown): undefined;
  export function op_ffi_write_bytes(address: bigint, source: ArrayBuffer | ArrayBufferView): undefined;
}