Best Python code snippet using lisa_python
environment.py
Source:environment.py  
...310        for node_runbook in self.runbook.nodes:311            self.create_node_from_exists(312                node_runbook=node_runbook,313            )314            has_default_node = self._validate_single_default(315                has_default_node, node_runbook.is_default316            )317        if self._retries > 0:318            # provide an unique id.319            self.id = f"{self._raw_id}-{self._retries}"320        self.remove_context()321        self._retries += 1322    def _validate_single_default(323        self, has_default: bool, is_default: Optional[bool]324    ) -> bool:325        if is_default:326            if has_default:327                raise LisaException("only one node can set isDefault to True")328            has_default = True329        return has_default330if TYPE_CHECKING:331    EnvironmentsDict = UserDict[str, Environment]332else:333    EnvironmentsDict = UserDict334class Environments(EnvironmentsDict):335    def __init__(336        self,...Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
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