public UpdateInstruction withUsers(User... users) {
        if (this.users == null) {
            setUsers(new java.util.ArrayList<User>(users.length));
        }
        for (User ele : users) {
            this.users.add(ele);
        }
        return this;
    }
<p>
A structure that specifies the user or group to add or revoke the role for.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setUsers(java.util.Collection)} or {@link #withUsers(java.util.Collection)} if you want to override the
existing values.
</p>

@param users
       A structure that specifies the user or group to add or revoke the role for.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-managedgrafana/src/main/java/com/amazonaws/services/managedgrafana/model/UpdateInstruction.java