How to append prefix in group name while returning in SAML Response

Questions
1

Hi,

I would like to append some prefix in my SAML groups statement response.

For example currently I have group like below:
ABC-GROUP
TEST-GROUP

while returning back in SAML response, I would like append some prefix like below.
XYZ\ABC-GROUP
XYZ\TEST-GROUP

Is there any way using which we can alter these values before passing back to SAML response.

        <saml2:Attribute Name="groups" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified">
            <saml2:AttributeValue
                xmlns:xs="http://www.w3.org/2001/XMLSchema"
                xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">Everyone
            </saml2:AttributeValue>
        </saml2:Attribute>

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