def is_string(value):

    if value is None:
        return

    if not isinstance(value, str):
        return c('string')
Truncate the string to the limit number of
dataset/ETHPy150Open heiskr/sagefy/server/modules/validations.py/is_string--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Paste-2.0.1/paste/exceptions/formatter.py/truncate