(sentence)
return clean_sentence
:param sentence: str a sentence to clean of leading and trailing space characters.
    :return: str a sentence that has been cleaned of leading and trailing space characters.
def clean_up_spacing(sentence):
    """

    :param sentence: str a sentence to clean of leading and trailing space characters.
    :return: str a sentence that has been cleaned of leading and trailing space characters.
    """

    clean_sentence = sentence.strip()
    return clean_sentence
def clean_up_spacing ( sentence ) : clean_sentence = sentence . strip ( ) return clean_sentence