pub fn storage_usage(&self) -> Balance {
        (INIT_ACCOUNT_STORAGE + 
            self.legacy_tokens.len() as u64 * (ACC_ID_AS_KEY_STORAGE + U128_STORAGE) + 
            self.tokens.len() as u64 * (KEY_PREFIX_ACC + ACC_ID_AS_KEY_STORAGE + U128_STORAGE)
        ) as u128
            * env::storage_byte_cost()
    }
// [AUDIT_01]
/// Returns amount of $NEAR necessary to cover storage used by this data structure.
[AUDIT_01]
Returns amount of $NEAR necessary to cover storage used by this data structure.
[ AUDIT_01 ] Returns amount of $NEAR necessary to cover storage used by this data structure .
pub fn storage_usage(&self) -> Balance {
        (INIT_ACCOUNT_STORAGE + 
            self.legacy_tokens.len() as u64 * (ACC_ID_AS_KEY_STORAGE + U128_STORAGE) + 
            self.tokens.len() as u64 * (KEY_PREFIX_ACC + ACC_ID_AS_KEY_STORAGE + U128_STORAGE)
        ) as u128
            * env::storage_byte_cost()
    }
pub fn storage_usage ( & self ) -> Balance { ( INIT_ACCOUNT_STORAGE + self . legacy_tokens . len ( ) as u64 * ( ACC_ID_AS_KEY_STORAGE + U128_STORAGE ) + self . tokens . len ( ) as u64 * ( KEY_PREFIX_ACC + ACC_ID_AS_KEY_STORAGE + U128_STORAGE ) ) as u128 * env :: storage_byte_cost ( ) }
[AUDIT_01]
Returns amount of $NEAR necessary to cover storage used by this data structure.
[ AUDIT_01 ] Returns amount of $NEAR necessary to cover storage used by this data structure .
&self
&self