style
AnnotationLineEndStyle
Possible values: [LE_SQUARE, LE_CIRCLE, LE_BUTT, LE_NONE, LE_OPEN_ARROW, LE_CLOSED_ARROW, LE_R_CLOSED_ARROW, LE_R_OPEN_ARROW, LE_DIAMOND, LE_SLASH].
x
Float
RequiredNot null
y