<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_scripts(scripts_dir='bin'):
 """Get relative file paths for all files under the ``scripts_dir`` """

    scripts = []
    for (dirname, _, filenames) in os.walk(scripts_dir):
        scripts.extend([os.path.join(dirname, fn) for fn in filenames])
    return scripts