fieldStringThe email property to match on. One of SUBJECT, TO, BCC, CC or FROM[optional]
shouldStringWhat criteria to apply. CONTAIN or EQUAL. Note CONTAIN is recommended due to some SMTP servers adding new lines to fields and body content.[optional]
valueStringThe value you wish to compare with the value of the field specified using the should value passed. For example BODY should CONTAIN a value passed.[optional]

Code Sample

require 'MailSlurpClient'

instance = null,
                                 should: null,
                                 value: null)