code: def _try_resource_cache_relpath(source_path):
      """Tries to return the source path relative to a resource cache dir.
  
      Returns None if the source is not under the resource cache root.
  
      This is a best attempt to determine a resource source subpath
      based on where the source is extracted in a resource cache. This
      value is useful relative to the resource URI. For example, if a
      resource URI is 'file:files.zip' and the source is
      'aaa/bbb/file.txt' within that resource, this function attempts to
      return 'aaa/bbb/file.txt' based on the location of the resolved
      source file under a resource cache directory.
  
      Ideally we'd have this relative path in
      `guild.op_dep.ResolvedSource` but this would require a change to
      the `guild.resolver.Resolver.resolve()` interface. This function
      makes a best attempt to get this information at arm's length.
      """
      resource_root = var.cache_dir("resources")
      if source_path.startswith(resource_root):
          return _strip_resource_hash(
              _relpath(source_path, resource_root)
          )
      return None
  
imports: import os
  import re
  from guild import manifest
  from guild import util
  from guild import var
label_desc: Use image node_id 11 for calling a global function with example usage: _try_resource_cache_relpath(source_path) and returns: None, _strip_resource_hash