text: from sqlalchemy import Column, ForeignKey
  from FreeTAKServer.model.SQLAlchemy.Root import Base, Root
  from sqlalchemy import String
  from sqlalchemy import Integer
  from FreeTAKServer.model.SQLAlchemy.ExCheckKeywords import ExCheckKeywords
  from sqlalchemy.orm import relationship
  
  class ExCheckData(Base):
      __tablename__ = 'ExCheckData'
      PrimaryKey = Column(ForeignKey("ExCheck.PrimaryKey"), primary_key = True, autoincrement=True)
      filename = Column(String)
      mimeType = Column(String)
      name = Column(String)
      submissionTime = Column(String)
      submitter = Column(String)
      uid = Column(String)
      hash = Column(String, unique=True)
      size = Column(Integer)
      tool = Column(String)
      keywords = relationship("ExCheckKeywords", uselist=False, backref="ExCheckData", cascade="all, delete")