language
Specifies the language on the map labels using the BCP 47 language tag, limited to ISO 639-1 two-letter language codes. If the specified language data isn't available for the map image, the labels will default to the regional primary language.
Supported codes:
ar
as
az
be
bg
bn
bs
ca
cs
cy
da
de
el
en
es
et
eu
fi
fo
fr
ga
gl
gn
gu
he
hi
hr
hu
hy
id
is
it
ja
ka
kk
km
kn
ko
ky
lt
lv
mk
ml
mr
ms
mt
my
nl
no
or
pa
pl
pt
ro
ru
sk
sl
sq
sr
sv
ta
te
th
tr
uk
uz
vi
zh