def __init__(self, envs=None, labels=None, line_envs=None, line_labels=None):
        """
        Class representing current state of environment variables and labels.

        :param envs: dict with variables valid for this line
            (all variables defined to this line)
        :param labels: dict with labels valid for this line
            (all labels defined to this line)
        :param line_envs: dict with variables defined on this line
        :param line_labels: dict with labels defined on this line
        """
        self.envs = envs or {}
        self.labels = labels or {}
        self.line_envs = line_envs or {}
        self.line_labels = line_labels or {}
def __init__ ( self , envs = None , labels = None , line_envs = None , line_labels = None ) : self . envs = envs or { } self . labels = labels or { } self . line_envs = line_envs or { } self . line_labels = line_labels or { }
Class representing current state of environment variables and labels.

        :param envs: dict with variables valid for this line
            (all variables defined to this line)
        :param labels: dict with labels valid for this line
            (all labels defined to this line)
        :param line_envs: dict with variables defined on this line
        :param line_labels: dict with labels defined on this line