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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 new(arg_name, annotated_with=None):
 """Creates an ArgBindingKey. Args: arg_name: the name of the bound arg annotation: an Annotation, or None to create an unannotated arg binding key Returns: a new ArgBindingKey """

    if arg_name.startswith(_PROVIDE_PREFIX):
        binding_key_name = arg_name[_PROVIDE_PREFIX_LEN:]
        provider_indirection = provider_indirections.INDIRECTION
    else:
        binding_key_name = arg_name
        provider_indirection = provider_indirections.NO_INDIRECTION
    binding_key = binding_keys.new(binding_key_name, annotated_with)
    return ArgBindingKey(arg_name, binding_key, provider_indirection)