Coalesce returns the first non-zero element.

GetEnvOrDefault returns the first non-empty environment variable.

Interpolate templatises the string using the vars as the context.

InterpolateStrings templatises each string in the slice using the vars as the context.

NormalizeVersion appends "v" to version string if it's not exist.

RandomString returns a random string consisting of the characters in randomChars, with the length customized by the parameter.

ShortTimestamp returns a shortened timestamp using week of year + day of week to represent a day of the e.g.

Stringify converts the given value to a string.