Function spl_token::instruction::set_authority

pub fn set_authority(
    token_program_id: &Pubkey,
    owned_pubkey: &Pubkey,
    new_authority_pubkey: Option<&Pubkey>,
    authority_type: AuthorityType,
    owner_pubkey: &Pubkey,
    signer_pubkeys: &[&Pubkey]
) -> Result<Instruction, ProgramError>

Creates a SetAuthority instruction.