// SPDX-License-Identifier: Apache-2.0 pragma solidity >=0.4.9 <0.9.0; interface IPrngSystemContract { // Generates a 256-bit pseudorandom seed using the first 256-bits of running hash of n-3 transaction record. // Users can generate a pseudorandom number in a specified range using the seed by (integer value of seed % range) function getPseudorandomSeed() external returns (bytes32); }