how to get soap header infor by this API ?

[threen134]

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://api.service.softlayer.com/soap/v3/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
SOAP-ENV:Header
ns1:X-RateLimit-Purge-Paths-Limit-Burst20000</ns1:X-RateLimit-Purge-Paths-Limit-Burst><<<<<<<<<<<<<<
ns1:X-RateLimit-Purge-Paths-Limit-Per-Second20</ns1:X-RateLimit-Purge-Paths-Limit-Per-Second>
ns1:X-RateLimit-Purge-Paths-Remaining19998</ns1:X-RateLimit-Purge-Paths-Remaining>
</SOAP-ENV:Header>
SOAP-ENV:Body
ns1:createPurgeGroupResponse

1583391443
680060382882299
1583391443
newtest2
<option xsi:type="