@uniswap/universal-router/lib/v3-periphery/test/shared/base64.ts

Smart contracts for Universal Router

export function base64Encode(str: string): string {
  return Buffer.from(str, 'utf8').toString('base64')
}

export function base64Decode(str: string): string {
  return Buffer.from(str, 'base64').toString('utf8')
}