def call(args)
if args.count == 2
search, prefix = args
search_type = get_type(search)
prefix_type = get_type(prefix)
if search_type != STRING_TYPE
msg = "function starts_with() expects first argument to be a string"
return maybe_raise Errors::InvalidTypeError, msg
end
if prefix_type != STRING_TYPE
msg = "function starts_with() expects second argument to be a string"
return maybe_raise Errors::InvalidTypeError, msg
end
search.start_with?(prefix)
else
msg = "function starts_with() expects two arguments"
return maybe_raise Errors::InvalidArityError, msg
end
end