How have courts interpreted the doctrine of attachment in a personal injury case?

[185 Cal.App.2d 431] In Bennett v. Superior Court, 218 Cal. 153, at page 161, 21 P.2d 946, at page 949, it was said, 'The rule is established upon well-considered authority that, if upon the examination of the complaint the gravamen of the action forces the conclusion that it is an action for the recovery of a specific sum of money upon a contract, express or implied, an attachment will issue regardless of the fact that the exercise of equitable powers of the court are also incidentally involved.'