class_docstr: SQLite3 TaskRecord backend.
docstr: Remove a record from the DB.
docstr_tok: ["Remove","a","record","from","the","DB","."]
code: def drop_matching_records(self, check):
      """Remove a record from the DB."""
      expr, args = self._render_expression(check)
      query = f"DELETE FROM '{self.table}' WHERE {expr}"
      self._db.execute(query, args)
  
imports: import json
  import os
  from datetime import datetime
  from dateutil.parser import parse
  from tornado import ioloop
  from traitlets import Dict, Instance, List, Unicode
  from ..util import ensure_timezone, extract_dates
  from .dictdb import BaseDB
label_desc: Use image node_id 13 for calling the SQLiteDB obj's underlying member method code with example usage: obj.drop_matching_records(check) without return types