private String createBreakpointName(String queryName, QueryTerminal queryTerminal) {
        return queryName + ":" + queryTerminal;
    }
Create the breakpoint name for the given query at the given end point.

@param queryName     the Siddhi query name
@param queryTerminal the IN or OUT end point of the query
@return the breakpoint name
modules/siddhi-core/src/main/java/io/siddhi/core/debugger/SiddhiDebugger.java