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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 assemble_remotes(resource):
 """ Using the specified input resource, assemble a list of rpm URLS. This function will, when given a remote package url, directory index, or a combination of the two in a local input file, do all the work required to turn that input into a list of only remote package URLs. """

    resource_type = classify_resource_type(resource)

    if resource_type is None:
        juicer.utils.Log.log_debug("Could not classify or find the input resource.")
        return []
    elif resource_type == REMOTE_PKG_TYPE:
        return [resource]
    elif resource_type == REMOTE_INDEX_TYPE:
        return parse_directory_index(resource)
    elif resource_type == REMOTE_INPUT_FILE_TYPE:
        # Later on this could examine the excluded data for directory
        # indexes and iterate over those too.
        remote_packages, excluded_data = parse_input_file(resource)
        return remote_packages