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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_lambda_permissions(function='', statement_id='', action='lambda:InvokeFunction', principal='', source_arn='', env='', region='us-east-1'):
 """Add permission to Lambda for the event trigger. Args: function (str):
 Lambda function name statement_id (str):
 IAM policy statement (principal) id action (str):
 Lambda action to allow principal (str):
 AWS principal to add permissions source_arn (str):
 ARN of the source of the event. Only needed for S3 env (str):
 Environment/account of function region (str):
 AWS region of function """

    session = boto3.Session(profile_name=env, region_name=region)
    lambda_client = session.client('lambda')
    response_action = None
    prefixed_sid = FOREMAST_PREFIX + statement_id

    add_permissions_kwargs = {
        'FunctionName': function,
        'StatementId': prefixed_sid,
        'Action': action,
        'Principal': principal,
    }

    if source_arn:
        add_permissions_kwargs['SourceArn'] = source_arn

    try:
        lambda_client.add_permission(**add_permissions_kwargs)
        response_action = 'Add permission with Sid: {}'.format(prefixed_sid)
    except boto3.exceptions.botocore.exceptions.ClientError as error:
        LOG.debug('Add permission error: %s', error)
        response_action = "Did not add permissions"

    LOG.debug('Related StatementId (SID): %s', prefixed_sid)
    LOG.info(response_action)