docstr: Provide completions on prefix
docstr_tok: ["Provide","completions","on","prefix"]
code: def __call__(self, prefix, **kwargs):
      """
      Provide completions on prefix
      """
      target_dir = os.path.dirname(prefix)
      try:
          names = os.listdir(target_dir or ".")
      except Exception:
          return  # empty iterator
      incomplete_part = os.path.basename(prefix)
      # Iterate on target_dir entries and filter on given predicate
      for name in names:
          if not name.startswith(incomplete_part):
              continue
          candidate = os.path.join(target_dir, name)
          if not self.predicate(candidate):
              continue
          yield candidate + "/" if os.path.isdir(
              candidate
          ) else candidate
  
imports: import argparse
  import os
  import subprocess
label_desc: Use image node_id 2 for calling the _FilteredFilesCompleter obj's underlying member method code with example usage: obj.__call__(prefix) without return types