Function create_biscuit 

pub fn create_biscuit(
    subject: String,
    resource: String,
    operation: String,
    key: KeyPair,
    time_config: TokenTimeConfig,
) -> Result<Vec<u8>, Box<dyn Error>>

Creates a new biscuit token with the specified subject and resource.

This function creates a token that grants read and write access to the specified resource for the given subject. The token will be valid for 5 minutes by default.

Arguments

• subject - The subject (user) identifier
• resource - The resource identifier to grant access to
• operation - The operation to grant access to
• key - The key pair used to sign the token
• time_config - Optional time configuration for token validity

Returns

• Ok(Vec<u8>) - The binary token data if successful
• Err(Box<dyn Error>) - If token creation fails