Generated API method name without prefix, postfix

Good morning,
my swagger json is without operationId.. (I cannot change it, it is from external company).. It looks this way:
And method generated by openapitool looks this way: backEndAdministrationGetTenantRolesAndGroupsPost.
Is there any way, any customization, that method would have name like GetTenantRolesAndGroups?

BR Martin

"paths": {
"/BackEnd/Administration/GetTenantRolesAndGroups": {
"post": {
"tags": [
"Administration"
],
"responses": {
"200": {
"description": "Success",
"content": {
"text/plain": {
"schema": {
"$ref": "#/components/schemas/UserRoleViewModel"
}
},
"application/json": {
"schema": {
"$ref": "#/components/schemas/UserRoleViewModel"
}
},
"text/json": {
"schema": {
"$ref": "#/components/schemas/UserRoleViewModel"
}
}
}
},
"400": {
"description": "Bad Request",
"content": {
"text/plain": {
"schema": {
"type": "string"
}
},
"application/json": {
"schema": {
"type": "string"
}
},
"text/json": {
"schema": {
"type": "string"
}
}
}
}
}
}
},

No source file, generator target, or test is identified in the issue. Start by determining which generator and language target produce the shown method, then trace operation-name generation for the path and define a focused regression test; done means the configured output uses GetTenantRolesAndGroups without the path-derived prefix or suffix.