1  // SPDX-License-Identifier: MIT
2  
3  pragma solidity >=0.6.0;
4  pragma experimental ABIEncoderV2;
5  
6  
7  interface IReader {
8      function getPositions(address _vault, address _account, address[] calldata _collateralTokens, address[] calldata _indexTokens, bool[] calldata _isLong) external view returns(uint256[] memory);
9  }