def __init__(self, *args, **kwargs):
super(TechIndicators, self).__init__(*args, **kwargs)<EOL>self._append_type = False<EOL>if self.output_format.lower() == '<STR_LIT>':<EOL><INDENT>raise ValueError("<STR_LIT>".format(<EOL>self.output_format.lower()))<EOL><DEDENT>
Inherit AlphaVantage base class with its default arguments