text: const prefix = 'Transfer_'
  
  const defaultConfigure = {
    isFibosAccountExist: false,
    isFibosAccountValid: true,
    toTransfer: 'USDT',
  
    ethgasAPI: {},
    slow: undefined,
    average: undefined,
    fast: undefined,
    /*
    @feeType
  
    slow
    average
    fast
    */
    feeType: 'slow',
    estimating: false,
  
    gasLimit: undefined,
  
    /* mock */
  }
  
  export default (state = defaultConfigure, action) => {
    switch (action.type) {
      case `${prefix}changeFieldValue`: {
        return {
          ...state,
          [action.field]: action.value,
        }
      }
      default: {
        return state
      }
    }
  }
  