<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def normalize_fieldsets(fieldsets):
 """ Make sure the keys in fieldset dictionaries are strings. Returns the normalized data. """

    result = []
    for name, options in fieldsets:
        result.append((name, normalize_dictionary(options)))
    return result