I would like to know the difference between LDAP3 Connection(auto_bind=True) and Connection().bind() in Python

Question

I was passing wrong credentials(password) in below code

conn = Connection(server, account_username, account_password, auto_bind=True)

and getting below error

ldap3.core.exceptions.LDAPBindError: automatic bind not successful - invalidCredentials

When I do the same without auto_bind argument in connection.

conn = Connection(server, account_username, account_password)
conn.bind()

conn was not throwing any error. conn.bind() is False. Help would be appreciated. Thanks