class_docstr: Python interface for VegaFusion Sql Dataset
docstr: True if the dataset must be evaluated run on the main thread.
  This blocks multithreaded parallelization, but is sometimes required
  
  :return: bool
code: def main_thread(self) -> bool:
      """
      True if the dataset must be evaluated run on the main thread.
      This blocks multithreaded parallelization, but is sometimes required
  
      :return: bool
      """
      return True
  
file_path: vegafusion/python/vegafusion/vegafusion/dataset/sql.py
imports: from abc import ABC, abstractmethod
  import pyarrow
  from typing import TYPE_CHECKING
label_desc: Use image node_id 6 for calling the SqlDataset obj's underlying member method code with example usage: obj.main_thread() and returns: True