// Create takes the representation of a certificateSigningRequest and creates it. Returns the server's representation of the certificateSigningRequest, and an error, if it occurs.
// Update takes the representation of a certificateSigningRequest and updates it. Returns the server's representation of the certificateSigningRequest, and an error, if it occurs.
// UpdateStatus takes the representation of a certificateSigningRequest and updates it. Returns the server's representation of the certificateSigningRequest, and an error, if it occurs.
// UpdateApproval takes the representation of a certificateSigningRequest and updates it. Returns the server's representation of the certificateSigningRequest, and an error, if it occurs.