Crate envoption

Enums

• EnvOptionError
• OptionType
  The behavior if the environment variable is not set.

Functions

• get
  Get an environment variable, using the given mode to determine behavior when it is not set.
• optional
  Get an environment variable, returning None if it doesn’t exist.
• require
  Get an environment variable, and return an error if it doesn’t exist.
• with_default
  Get an environment variable, returning a default value if it doesn’t exist.