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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 validate(self, value):
 """Base validation method. Check if type is valid, or try brute casting. Args: value (object):
 A value for validation. Returns: Base_type instance. Raises: SchemaError, if validation or type casting fails. """


        cast_callback = self.cast_callback if self.cast_callback else self.cast_type

        try:
            return value if isinstance(value, self.cast_type) else cast_callback(value)

        except Exception:
            raise NodeTypeError('Invalid value `{}` for {}.'.format(value, self.cast_type))