Laravel Passport：我如何从客户凭证授予类型获取刷新令牌

Question

我要求了如下Client_credentials：

{
    "grant_type": "client_credentials",
    "client_id": 8,
    "client_secret": "XXNKXXqJjfzG8XXSvXX1Q4pxxnkXmp8tT8TXXKXX",
    "redirect_uri": "",
    "scope": "*"
}

然后在下面收到响应：

{
    "token_type": "Bearer",
    "expires_in": 31536000,
    "access_token": "eyJ0eXAiOiJKV1QiLCJhbGcXXXJSUzI1NiIsImp0aSI6ImEzYjJhZmU5OTYzMTE5MDAyZDAwZmEzNzU0ZGY3ZTRkMTgwYzhlYWRmNGQyOGU5MTI4YjAyYjJmYWQxZjY1NjUzMzAyZjNlZTI4MTgxMDFhIn0.eyJhdWQiOiI4IiwianRpIjoiYTNiMmFmZTk5NjMxMTkwMDJkMXXXYTM3XXXkZjdlNGQxODBjOGVhZGY0ZDI4ZTkxMjhiMDJiMmZhZDFmNjU2NTMzMDJmM2VlMjgxODEwMWEiLCJpYXQiOjE1NDAwMTQxNTUsIm5iZiI6MTU0MDAxNDE1NSwiZXhwIjoxNTcxNTUwMTU1LCJzdWIiOiIiLCJzY29wZXMiOltdfQ.sNSYywfBf27yAojqZclpjliysbQARlYFktzanTMecXXXIai5DgJY0sKhGpHktP5cqirYdemoFKy2nOxzZ8g29gCQQ63zmxe3vpbDz1GAdrjCDWoUlwSXXXHx4VIsdSIzVdi9XyvPKaLKMdoL6nFeWgpgXKGIvHKdiHjKgQbY_08Qa6JMN5Up27qmIOQoXJNAf1nuXvBMabUU_Js7VNspwPfdC8nMZ5zhK1A_c32_lDRtHqkhDfqqBXdUB-inx-zixhn2ODC4b4tkdj7XXXXlVKFxHxKM3aVOMFlmKhypSDwIUB0dPsN8iHcLzkl1yjzRQcOvQEj5BXWLkLCPdkiX2YJuFiWGUm_nxiYoIRV3ptJDeBI5OJI870JTOwBfJePrHTbXmhbjNSQSflLtiOV34wbPQZWH3KMKcsGVYvXXX3rcO5cbZWeeJLGPPYYO-_AWDmdAm-Qsb6Tw1sPxEZRw0dw3zBHnLVrEK9GXXXN2U5wE9Ka3id8ecOJSXSD39X1PyZUB9dJTidmbiWYWgskSTsqLuWfzXXXtlXkb1iOO37kT_Y5zr71Wp1RJ1Fp38yIyHI6fR9hKqeNALSqhv2ALmcSMQsFGTtPG98lGulu-vRJJhgMJ3C3fSTljN7o9BM7Jz-h0ymxC8sSMSNsXakK1qu40vD40zRJMB09sBPjIAVo"
}

响应没有给我刷新令牌。但我知道访问令牌将在1年后过期。

问题：如何获取此grant_type的刷新令牌？以及如何扩展访问令牌的有效性？