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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 createStaticLibBuilder(env):
 """This is a utility function that creates the StaticLibrary Builder in an Environment if it is not there already. If it is already there, we return the existing one. """


    try:
        static_lib = env['BUILDERS']['StaticLibrary']
    except KeyError:
        action_list = [ SCons.Action.Action("$ARCOM", "$ARCOMSTR") ]
        if env.get('RANLIB',False) or env.Detect('ranlib'):
            ranlib_action = SCons.Action.Action("$RANLIBCOM", "$RANLIBCOMSTR")
            action_list.append(ranlib_action)

        static_lib = SCons.Builder.Builder(action = action_list,
                                           emitter = '$LIBEMITTER',
                                           prefix = '$LIBPREFIX',
                                           suffix = '$LIBSUFFIX',
                                           src_suffix = '$OBJSUFFIX',
                                           src_builder = 'StaticObject')
        env['BUILDERS']['StaticLibrary'] = static_lib
        env['BUILDERS']['Library'] = static_lib

    return static_lib