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Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>
Co-authored-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

Signed-off-by: simon-mo <simon.mo@hey.com>

[Feature][V1]  Support `tool_choice: required` when using Xgrammar as the `StructuredOutputBackend`. (#17845)
Signed-off-by: chaunceyjiang <chaunceyjiang@gmail.com>

Signed-off-by: csy1204 <josang1204@gmail.com>
Co-authored-by: 조상연[플레이스 AI] <sang-yeon.cho@navercorp.com>

Signed-off-by: shen-shanshan <467638484@qq.com>

Signed-off-by: Leon Seidel <leon.seidel@fau.de>

Signed-off-by: chaunceyjiang <chaunceyjiang@gmail.com>

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>
Signed-off-by: Russell Bryant <rbryant@redhat.com>
Co-authored-by: Russell Bryant <rbryant@redhat.com>
Co-authored-by: Michael Goin <mgoin64@gmail.com>
Co-authored-by: Nick Hill <nhill@redhat.com>