Bool returns a bool from the environment.

Duration returns a time.Duration from the environment.

Float32 returns a float32 from the environment.

Float64 returns a float64 from the environment.

Get gets an env value.

Int returns a int from the environment.

Int64 returns a int64 from the environment.

Time returns a time.Time from the environment.

Uint64 returns a uint64 from the environment.