Can't save an iRule because of formatting issues.

01070151:3: Rule [/Common/O365_Microsoft_Networks_dg_irule] error: /Common/O365_Microsoft_Networks_dg_irule:1: error: [parse error: missing close-brace][{ if { [class match [IP::remote_addr] equals O365_Microsoft_Networks_dg] } { if {([HTTP::uri] contains &8220;/ews&8221;)} { pool O365_POC_Exchange_owa_pool7 } }] /Common/O365_Microsoft_Networks_dg_irule:2: error: [command is not valid in the current scope][if { [class match [IP::remote_addr] equals O365_Microsoft_Networks_dg] } { if {([HTTP::uri] contains &8220;/ews&8221;)} { pool O365_POC_Exchange_owa_pool7 } }]