JOHANNESBURG – The National Assembly Speaker will find out today whether her urgent court bid to block her arrest has been successful or not.Nosiviwe Mapisa-Nqakula faces a string of corruption and money laundering charges amounting to more than R4m.WATCH | Speaker’s battle against graft allegationsThe embattled Speaker wants to be summoned to court on a date when her attorney will be present.The charges are contained in the National Prosecuting Authority’s answering affidavit.WATCH | Mapisa-Nqakula’s lawyer : Not enough evidence for reasonable prospect of convictionThe NPA says it has a…