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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 _apply_list(self, methods):
 """Return a single callable that applies a list of methods to a value. If a method returns None, the last value is kept; if it returns some other value, that replaces the last value. Exceptions are not caught. """

    def call(value):
      for method in methods:
        newvalue = method(self, value)
        if newvalue is not None:
          value = newvalue
      return value
    return call