This PR adds support for a #:coerce keyword that allows a user to supply their own function for converting the environment variable string value into a value of the declared type. When provided, it overrides the default coercion for the declared type if there is one.
This PR adds support for a
#:coerce
keyword that allows a user to supply their own function for converting the environment variable string value into a value of the declared type. When provided, it overrides the default coercion for the declared type if there is one.Closes #4