code: def assign_user_to_issue(self, issue, JIRAUsername):
      # TODO: Review docs
          
          self.jira.assign_issue(issue=issue, assignee=JIRAUsername)
docs: Adds a user to a specified issue's watcher list
  
          Arguments:
              |  issue (string)  		| A JIRA Issue that a user needs to be assigned to, can be an issue ID or Key		|
              |  JIRAUsername (string)  	| A JIRA Username to assign a user to an issue   									|
  
          Example:
             |  *Keyword*        		|  *Parameters* | 									|
             |  connect to jira       |  asimmons     | options= {'http://devjira01'}     |
             |  ${issue}				|  create issue |  ${issue_field_dict}				|
             |  assign user to issue	|  ${issue}		|  aSample 							|