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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 _prep_streamlined_config(config_script, work_dir):
 """Create manta INI file without steps that potentially increase runtimes. This removes calling of small indels. """

    new_min_size = 100
    in_file = config_script + ".ini"
    out_file = os.path.join(work_dir, os.path.basename(in_file))
    with open(in_file) as in_handle:
        with open(out_file, "w") as out_handle:
            for line in in_handle:
                if line.startswith("minCandidateVariantSize"):
                    out_handle.write("minCandidateVariantSize = %s\n" % new_min_size)
                else:
                    out_handle.write(line)
    return out_file