code: def run(path, code=None, params=None, ignore=None, select=None, **meta):
          
          complexity = params.get('complexity', 10)
          no_assert = params.get('no_assert', False)
          show_closures = params.get('show_closures', False)
  
          visitor = ComplexityVisitor.from_code(code, no_assert=no_assert)
          blocks = visitor.blocks
          if show_closures:
              blocks = add_inner_blocks(blocks)
  
          return [
              {'lnum': block.lineno, 'col': block.col_offset, 'type': 'R', 'number': 'R709',
               'text': 'R701: %s is too complex %d' % (block.name, block.complexity)}
              for block in visitor.blocks if block.complexity > complexity
          ]
docs: Check code with Radon.
  
          :return list: List of errors.