# start method

void start (String name, { Map arguments })

Start a synchronous operation within this task named `name`. Optionally takes a Map of `arguments`.

## Implementation

    void start(String name, {Map arguments}) {
      if (_isProduct) {
        return;
      }
      if (name is! String) {
        throw new ArgumentError.value(name, 'name', 'Must be a String');
      }
      var block = new _AsyncBlock._(name, _taskId);
      if (arguments is Map) {
        block._arguments = arguments;
      }
      _stack.add(block);
      block._start();
    }