> For the complete documentation index, see [llms.txt](https://docs.zk.link/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zk.link/developer/sdk/changelog/utils.md).

# Utils

#### func isTokenAmountPackable

```go
func IsTokenAmountPackable(amount BigUint) bool
```

Checks whether the token amount can be packed (and thus used in the transaction)

#### func isFeeAmountPackable

```go
func IsFeeAmountPackable(fee BigUint) bool
```

Checks whether the fee amount can be packed (and thus used in the transaction)

#### func closestPackableTokenAmount

```go
func ClosestPackableTokenAmount(amount BigUint) BigUint
```

Returns the closest possible packable token amount. Returned amount is always less or equal to the provided amount.

#### func closestPackableFeeAmount

```go
func ClosestPackableFeeAmount(fee BigUint) BigUint
```

Returns the closest possible packable fee amount. Returned amount is always less or equal to the provided amount.

#### Example

```go
amount := *big.NewInt(1234567899808787)
fmt.Println("Original amount: ", amount)
amount = sdk.ClosestPackableTokenAmount(amount)
fmt.Println("Converted amount:s", amount)
fee := *big.NewInt(10000567777)
fmt.Println("Original fee: ", fee)
fee = sdk.ClosestPackableFeeAmount(fee)
fmt.Println("Converted fee: ", fee)
```


---

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