code: def mark_line(self, lineno, as_func=None):
      line = self.lines.setdefault(lineno, set())
      if as_func is not None:
          as_func = as_func.split("'", 1)[0]
          line.add(as_func)
  
file_path: numpy/tools/c_coverage/c_coverage_report.py
imports: import os
  import re
  import sys
  from xml.sax.saxutils import quoteattr, escape
label_desc: Use image node_id 2 for calling the SourceFile obj's underlying member method code with example usage: obj.mark_line(lineno, as_func) without return types