Deposit amount period (in seconds) for a non-prepaid stream. If a non-prepaid stream has unlimited lifetime or
lifetime >= DEPOSIT_AMOUNT_PERIOD_IN_SECS, a security deposit is taken from the sender which would not be returned
in case the stream becomes insolvent. This is done to make sure users keep topping up their streams on time.
Deposit amount period (in seconds) for a non-prepaid stream. If a non-prepaid stream has unlimited lifetime or lifetime >= DEPOSIT_AMOUNT_PERIOD_IN_SECS, a security deposit is taken from the sender which would not be returned in case the stream becomes insolvent. This is done to make sure users keep topping up their streams on time.