hashCode

Calculates the hash code for the IssueCredential object.

The hash code is calculated using the following formula:

• The hash code of the id field is calculated using its hashCode() method.

• The hash code of the body field is calculated using its hashCode() method.

• The hash code of the attachments field is calculated using its contentHashCode() method.

• The hash code of the thid field is calculated using its hashCode() method, or zero if it is null.

• The hash code of the from field is calculated using its hashCode() method.

• The hash code of the to field is calculated using its hashCode() method.

• The hash code of the type field is calculated using its hashCode() method.

• The final hash code is calculated by multiplying each field's hash code by 31 and summing them up.