isReadNowPowers = value =>
  Boolean(
    value &&
      typeof value === 'object' &&
      requiredReadNowPowersProps.every(
        prop => prop in value && typeof value[prop] === 'function',
      ),
  )
Returns `true` if `value` is a {@link ReadNowPowers}

@param {ReadPowers|ReadFn|undefined} value
@returns {value is ReadNowPowers}