o i@s8dZddlmZddlZGdddeZddd d ZdS)zrEnvironment variable helpers. This module provides small, centralized parsing helpers for environment variables. ) annotationsNcs"eZdZdZdfdd ZZS) InvalidEnvVarValueErrorz;Raised when an environment variable value cannot be parsed.namestrvalueexpectedc s6td|d|d|d||_||_||_dS)z&Initialize an InvalidEnvVarValueError.zInvalid value for env var z: z . Expected .N)super__init__rrr)selfrrr __class__E/home/ubuntu/.local/lib/python3.10/site-packages/pipecat/utils/env.pyr s  z InvalidEnvVarValueError.__init__)rrrrrr)__name__ __module__ __qualname____doc__r __classcell__rrr rrsrFrrdefaultboolreturncCsHt|}|dur |S|}|dvrdS|dvrdSt||dd)aInterpret an environment variable as a boolean. - If the variable is **not set**, returns `default`. - If the variable is set to a recognized boolean string, returns the parsed value. - Otherwise, raises `InvalidEnvVarValueError`. Recognized values (case-insensitive, whitespace ignored): - Truthy: "1", "true", "yes", "y", "on" - Falsy: "0", "false", "no", "n", "off", "" N>1yonyestrueT>0nnoofffalseFz true or false)rrr)osgetenvstriplowerr)rrrawvalrrr env_truthys  r))F)rrrrrr)r __future__rr# ValueErrorrr)rrrrs