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import subprocess
from typing import Optional
def metadata_list(db, prefix: Optional[str] = None) -> list[str]:
cmdline = ['xapian-metadata', 'list', db]
if prefix:
cmdline.append(prefix)
cmd = subprocess.run(cmdline, capture_output=True, text=True)
return cmd.stdout.split('\n')
def metadata_get(db, key: str) -> str:
cmd = subprocess.run(['xapian-metadata', 'get', db, key],
capture_output=True, text=True)
return cmd.stdout.strip()
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