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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def printdeps(obj, # type: Mapping[Text, Any] document_loader, # type: Loader stdout, # type: Union[TextIO, StreamWriter] relative_deps, # type: bool uri, # type: Text basedir=None, # type: Text nestdirs=True # type: bool """Print a JSON representation of the dependencies of the CWL document."""

    deps = find_deps(obj, document_loader, uri, basedir=basedir,
                     nestdirs=nestdirs)
    if relative_deps == "primary":
        base = basedir if basedir else os.path.dirname(uri_file_path(str(uri)))
    elif relative_deps == "cwd":
        base = os.getcwd()
    visit_class(deps, ("File", "Directory"), functools.partial(
        make_relative, base))
    stdout.write(json_dumps(deps, indent=4))