# Functions
NewBadRequestError bad request error status:400.
NewExternalServiceError external call failed - status: 424.
NewInternalServerError internal error - status: 500.
NewNotFounfError not found error - status: 404.
NewNotImplementedError service not implemented yet - status: 501.
NewRestError new custom rest error.
NewUnauthorizedError unauthorized error - status: 401.
# Interfaces
RestErr rest error interface.