Error using gmail.readlatestMailBody

I try to use readlatestMailBody and got this error:
ERROR k.k.c.m.CustomKeywordDelegatingMetaClass - :x: No signature of method: com.testwithhari.katalon.plugins.Gmail.readLatestEMailBody() is applicable for argument types: (java.lang.String, java.lang.String, java.lang.String) values: [, Newpass123, Inbox()]

String submittedConsultMailContent = CustomKeywords.‘com.testwithhari.katalon.plugins.Gmail.readLatestEMailBody’(‘’, ‘Newpass123’, ‘Inbox()’)

what is wrong with the signature. what is needed to be in the Inbox(emailSubjectName, Inbox)?

the example provide here is not clear.