MAT.jl putting several tuples of variable string and variable in write()-command

given are two vectors: x, y
Question: can I use one write()-command to save them to a mat- file, if I would like to use specific lables?

write(file_id, "vec_x", x)
write(file_id, "vec_sin", y)

is fine.

write(file_id, "vec_x", x, "vec_sin", y)

Does a trick exist to do it properly?

remark: I do not want to save “dict”-variables, it should be to vectors.