<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def fmt_type_name(data_type, inside_namespace=None):
 """ Produces a TypeScript type name for the given data type. inside_namespace should be set to the namespace that the reference occurs in, or None if this parameter is not relevant. """

    if is_user_defined_type(data_type) or is_alias(data_type):
        if data_type.namespace == inside_namespace:
            return data_type.name
        else:
            return '%s.%s' % (data_type.namespace.name, data_type.name)
    else:
        fmted_type = _base_type_table.get(data_type.__class__, 'Object')
        if is_list_type(data_type):
            fmted_type += '<' + fmt_type(data_type.data_type, inside_namespace) + '>'
        return fmted_type