code: def cache_get_max_files():
      """Get the operation cache limit by number of open files."""
      return vips_lib.vips_cache_get_max_files()
  
imports: from __future__ import division, print_function
  import logging
  import pyvips
  from pyvips import ffi, vips_lib, Error, _to_bytes, _to_string, GValue, type_map, type_from_name, nickname_find, at_least_libvips
label_desc: Use image node_id 9 for calling a global function with example usage: cache_get_max_files() and returns: vips_lib