Parameters are looked up among the environment variables of the process as each request is served, so that a
variable defined after the vault was constructed is reported as well.
Keys may be prefixed, so that parameters are namespaced within a shared environment: prefix is prepended as
given, without a separator of its own.
Parameters
prefix: string = ""
The string to be prepended to the key of each parameter to be retrieved; defaults to the empty string,
looking keys up as they are given
Creates an environment vault.
Parameters are looked up among the environment variables of the process as each request is served, so that a variable defined after the vault was constructed is reported as well.
Keys may be prefixed, so that parameters are namespaced within a shared environment:
prefixis prepended as given, without a separator of its own.