You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: gval.go
    path of file: ./repos/corteza/server/vendor/github.com/PaesslerAG/gval
    
    the code of the file until where you have to start completion: // Package gval provides a generic expression language.
// All functions, infix and prefix operators can be replaced by composing languages into a new one.
//
    
func EvaluateWithContext(c context.Context, expression string, parameter interface{}, opts ...Language) (interface{}, error) {
	l := full
	if len(opts) > 0 {
		l = NewLanguage(append([]Language{l}, opts...)...)
	}
	return l.EvaluateWithContext(c, expression, parameter)
}