# Functions
Get environment variables.
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GetOrDefaultBool returns the given environment variable value as a boolean.
GetOrDefaultInt returns the given environment variable value as an integer.
GetOrDefaultSecond returns the given environment variable value as a time.Duration (second).
GetOrDefaultString returns the given environment variable value as a string.
GetOrFile Attempts to resolve 'key' as an environment variable.
GetWithFallback Get environment variable values.
ParseSecond parses env var value (string) to a second (time.Duration).
ParseString parses env var value (string) to a string but throws an error when the string is empty.