Function orgs_slash_create_invitation 

pub async fn orgs_slash_create_invitation(
    configuration: &Configuration,
    org: &str,
    orgs_create_invitation_request: Option<OrgsCreateInvitationRequest>,
) -> Result<OrganizationInvitation, Error<OrgsSlashCreateInvitationError>>

Invite people to an organization by using their GitHub user ID or their email address. In order to create invitations in an organization, the authenticated user must be an organization owner. This endpoint triggers notifications. Creating content too quickly using this endpoint may result in secondary rate limiting. For more information, see "Rate limits for the API" and "Best practices for using the REST API."