# Store

 This contract has price information that reflects the amount and time weight of the tokens held by the LP. The priceACumulativeLast and priceBCumulativeLast you have are TWCP (Time-Weighted Cumulative Price), which is time weighted price information. The quantity and price information of this contract will be used in Price Oracle.

## Address

* Cypress : [0x1289550d988177575154c2CA45c95CCfb32F837d](https://scope.klaytn.com/account/0x1289550d988177575154c2CA45c95CCfb32F837d?tabId=txList)

## Read-Only Functions

{% tabs %}
{% tab title="Events" %}

## Events

**Sync**

```solidity
event Sync(address pool, uint112 reserveA, uint112 reserveB);
```

* Emitted each time reserves are updated.
* Parameters
  * pool :  Pool contract address of target pool
  * reserveA : TokenA liquidity amount
  * reserveB : TokenB liquidity amount
    {% endtab %}

{% tab title="Read-Only Functions" %}

## Read-Only Functions

reserveA

```solidity
function reserveA(address pool) public view returns (uint112 _reserveA)
```

* Amount of TokenA held by LP

reserveB

```solidity
function reserveB(address pool) public view returns (uint112 _reserveB)
```

* Amount of TokenB held by LP

priceACumulativeLast

```solidity
function priceACumulativeLast(address pool) public view returns (uint112 _priceA)
```

* Time-Weighted Cumulative Price of TokenA held by LP

priceBCumulativeLast

```solidity
function priceBCumulativeLast(address pool) public view returns (uint112 _priceB)
```

* Time-Weighted Cumulative Price of TokenB held by LP

getReserves

```solidity
function getReserves(address pool) public view returns (uint112 _reserveA, uint112 _reserveB, uint32 _blockTimestampLast)
```

* Amount of held by LP and TWCP information
* Parameter
  * `_reserveA` : Amount of tokenA held by LP
  * `_reserveB` : Amount of tokenB held by LP
  * `_blockTimestampLast` : BlockTime at which LP was last calculated
    {% endtab %}
    {% endtabs %}