fn execute(&mut self) -> Result<()> {
        if let Some(Err(error)) = self.last() {
            Err(error)
        } else {
            Ok(())
        }
    }
/// Consumes the iterator to execute the operation. Returns on the first error to occur.
Consumes the iterator to execute the operation. Returns on the first error to occur.
Consumes the iterator to execute the operation . Returns on the first error to occur .
fn execute(&mut self) -> Result<()> {
        if let Some(Err(error)) = self.last() {
            Err(error)
        } else {
            Ok(())
        }
    }
fn execute ( & mut self ) -> Result < ( ) > { if let Some ( Err ( error ) ) = self . last ( ) { Err ( error ) } else { Ok ( ( ) ) } }
Consumes the iterator to execute the operation.
Consumes the iterator to execute the operation .
&mut self
&mut self