make an actual diagram please $4)$ Class Diagrams $$ Consider the email system$($s$)$ that you use. Make $2$ class diagrams $($Attributes$,$ Operations$/$Methods$)$ for a Mail system. You should be able to come up with at least $5$ attributes and $4$ operations for each class. Since a mailbox contains messages, think about which attributes and operations belong to which class. a$)$ Message class b$)$ Mailbox class Reference: $1)$ Use Case Tables $$ Consider the Mentcare system for which we considered requirements in the previous module. Make $2$ use case tables for this system $($table examples may be found in the textbook, section $5\mathrm{.}2,$ and in the content guides$).$ Be sure to consider who the actors would be in each case $($not all actors are human$).$ a$)$View Patient Medical Record$$ b$)$View Patient Personal Information$$ Please make Diagrams for Questions $2-5.$ Note: Make a simple sketch with labeling. You do not need fancy software $$ PowerPoint will work or other office software. An image of a NEAT hand sketch is also acceptable. Visio or other software may be used, but your diagram should be inserted as an image into a document, so that the instructor can easily view the diagram without having special software. $2)$ Sequence Diagram $$ Referring to $1$a above, make a sequence diagram for accessing and viewing a patient medical record. $3)$ Class Diagram $$ Make a class diagram for 'Patient Appointment' showing attributes and operations $/$ methods. Associations are optional.