Environment Variables
Environment Variables are variables globally available in @contract class
It's advised to use those variables under @contructor and @message methods
block#
block.timestamp (u64)#
current block timestamp as seconds since unix epoch
block.number (u32)#
current block number
msg#
msg.value (u128)#
seal_value_transferred
msg.sender (AccountId)#
sender of the message (current call)
msg.sig (u8)#
first four bytes of the calldata (i.e. function identifier)
msg.data (u8)#
complete calldata