class_docstr: git-annex special-remote frontend for DataLad's downloader facility
      
code: def claimurl(self, url):
      scheme = urlparse(url).scheme
      if scheme in self.SUPPORTED_SCHEMES:
          return True
      else:
          return False
  
file_path: datalad/datalad/customremotes/datalad.py
imports: import logging
  from urllib.parse import urlparse
  from datalad.downloaders.providers import Providers
  from datalad.support.exceptions import CapturedException, TargetFileAbsent
  from datalad.utils import unique
  from datalad.customremotes import RemoteError
  from datalad.customremotes.base import AnnexCustomRemote
  from datalad.customremotes.main import main
label_desc: Use image node_id 5 for calling the DataladAnnexCustomRemote obj's underlying member method code with example usage: obj.claimurl(url) and returns: True, False