declare module 'bpu' {
  interface ParseInputs {
    tx: { r: {} };
    split: { token: { s: string } }[];
  }

  // i: positional index for whichever item it's attached to. applies to both tape and cell.
  // ii: global positional index. only applies to cell. For example, a cell can have a local index i of 0, but global index ii of 3.
  // b: base64 representation of a push data.
  // s: UTF8 representation of a push data.
  // op: a Bitcoin opcode number. only applies to push data items which are opcodes. (not buffer type push data)
  // ops: a Bitcoin opcode string. only applies to push data items which are opcodes. (not buffer type push data)

  export interface BOB {
    tx: { h: string };
    in: In[];
    out: Out[];
    lock: number;
  }

  export interface Indexed {
    i: number;
  }

  export interface In extends Indexed {
    tape: Cells[];
    e: E;
    seq: number;
  }

  export interface Out extends Indexed {
    tape: Cells[];
    e: E;
  }

  export interface E extends Indexed {
    v: number;
    a: string;
  }

  export interface Cells extends Indexed {
    cell: Cell[];
  }

  export interface Cell {
    ii: number;
    op?: number;
    ops?: string;
    b?: string;
    s?: string;
  }

  const BPU: {
    parse: (inputs: ParseInputs) => Promise<BOB>;
  };

  export default BPU;
}