zkApp Developerso1js ReferenceNamespacesMinaType-AliasesNetworkConstantsNetworkConstantstype NetworkConstants: { "accountCreationFee": UInt64; "genesisTimestamp": UInt64; "slotTime": UInt64;};Type declarationaccountCreationFeeaccountCreationFee: UInt64;genesisTimestampgenesisTimestamp: UInt64;slotTimeslotTime: UInt64;Duration of 1 slot in millisecondwSourcelib/mina/mina-instance.ts:67