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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 camel_case_from_underscores(string):
 """Generate a CamelCase string from an underscore_string"""


    components = string.split('_')
    string = ''

    for component in components:
        if component in abbreviations:
            string += component
        else:
            string += component[0].upper() + component[1:].lower()

    return string