func NewCoin(amount sdk.Int) Coin {
	return Coin{Amount: amount}
}
NewCoin - return coin from sdk.Int.
package types
import (
	"fmt"
	"math"
	"math/big"
	sdk "github.com/cosmos/cosmos-sdk/types"
)
type LNO = string
var (
	LowerBoundRat = NewDecFromRat(1, Decimals)
	UpperBoundRat = sdk.NewDec(math.MaxInt64 / Decimals)
)
type Coin struct {
	Amount sdk.Int `json:"amount"`
}