docs: def generate_csr(self, basename='djangoafip'):
          """
          Creates a CSR for this TaxPayer's key
  
          Creates a file-like object that contains the CSR which can be used to
          request a new certificate from AFIP.
          """
          csr = BytesIO()
          crypto.create_csr(
              self.key.file,
              self.name,
              '{}{}'.format(basename, int(datetime.now().timestamp())),
              'CUIT {}'.format(self.cuit),
              csr,
          )
          csr.seek(0)
          return csr