SyntaxError('parameter annotation must be an identifier',)

SyntaxError('return annotation must be an identifier',)

ViperTypeError("unknown type 'unknown_type'",)

ViperTypeError("Viper functions don't currently support more than 4 arguments",)

ViperTypeError("local 'x' used before type known",)

ViperTypeError("local 'x' has type 'int' but source is 'object'",)

ViperTypeError("can't implicitly convert 'ptr' to 'bool'",)

ViperTypeError("return expected 'int' but got 'object'",)

ViperTypeError("can't do binary op between 'int' and 'object'",)

ViperTypeError("can't load from 'int'",)

ViperTypeError("can't load from 'int'",)

ViperTypeError("can't store to 'int'",)

ViperTypeError("can't store to 'int'",)

ViperTypeError("can't store to 'int'",)

ViperTypeError("can't store 'None'",)

ViperTypeError("can't store 'None'",)

ViperTypeError('must raise an object',)

ViperTypeError('unary op __pos__ not implemented',)

ViperTypeError('unary op __neg__ not implemented',)

ViperTypeError('unary op __invert__ not implemented',)

ViperTypeError('binary op not implemented',)

NotImplementedError('native yield',)

NotImplementedError('native yield',)

NotImplementedError('conversion to object',)

NotImplementedError('casting',)