module BSON::ExtJSON

def verify_no_reserved_keys(hash, **options)
 > RESERVED_KEYS.length
KEYS.any? { |key| hash.key?(key) }
r::ExtJSONParseError, "Hash uses reserved keys but does not match a known type: #{hash}"
.any? { |key| RESERVED_KEYS_HASH.key?(key) }
r::ExtJSONParseError, "Hash uses reserved keys but does not match a known type: #{hash}"
 **options)