Function near_sdk::env::take_blockchain_interface

pub fn take_blockchain_interface() -> Option<Box<dyn BlockchainInterface>>

Removes and returns the current low-level blockchain interface accessible through env::*. It is not meant to be used by the contract developers directly. In most cases you want to use testing_env! macro for your use cases.

let blockchain_interface = near_sdk::env::take_blockchain_interface();
// The following will panic, because there is no blockchain interface set:
// env::account_balance();