class_docstr: Represents an environment variable.
code: def set(self, value):
      os.environ[self.name] = str(value)
  
file_path: mlflow/mlflow/environment_variables.py
imports: import os
  from pathlib import Path
label_desc: Use image node_id 4 for calling the _EnvironmentVariable obj's underlying member method code with example usage: obj.set(value) without return types