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@kamino-finance/klend-sdk

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Typescript SDK for interacting with the Kamino Lending (klend) protocol

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/* eslint-disable @typescript-eslint/no-unused-vars */ import { Address, isSome, AccountMeta, AccountSignerMeta, Instruction, Option, TransactionSigner, } from "@solana/kit" /* eslint-enable @typescript-eslint/no-unused-vars */ import BN from "bn.js" // eslint-disable-line @typescript-eslint/no-unused-vars import * as borsh from "@coral-xyz/borsh" // eslint-disable-line @typescript-eslint/no-unused-vars import { borshAddress } from "../utils" // eslint-disable-line @typescript-eslint/no-unused-vars import * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars import { PROGRAM_ID } from "../programId" export const DISCRIMINATOR = Buffer.from([164, 35, 182, 19, 0, 116, 243, 127]) export interface MarkObligationForDeleveragingArgs { autodeleverageTargetLtvPct: number } export interface MarkObligationForDeleveragingAccounts { riskCouncil: TransactionSigner obligation: Address lendingMarket: Address } export const layout = borsh.struct<MarkObligationForDeleveragingArgs>([ borsh.u8("autodeleverageTargetLtvPct"), ]) export function markObligationForDeleveraging( args: MarkObligationForDeleveragingArgs, accounts: MarkObligationForDeleveragingAccounts, remainingAccounts: Array<AccountMeta | AccountSignerMeta> = [], programAddress: Address = PROGRAM_ID ) { const keys: Array<AccountMeta | AccountSignerMeta> = [ { address: accounts.riskCouncil.address, role: 2, signer: accounts.riskCouncil, }, { address: accounts.obligation, role: 1 }, { address: accounts.lendingMarket, role: 0 }, ...remainingAccounts, ] const buffer = Buffer.alloc(1000) const len = layout.encode( { autodeleverageTargetLtvPct: args.autodeleverageTargetLtvPct, }, buffer ) const data = Buffer.concat([DISCRIMINATOR, buffer]).slice(0, 8 + len) const ix: Instruction = { accounts: keys, programAddress, data } return ix }