def create_branch(repositoryName=None, branchName=None, commitId=None):
    """
    Creates a new branch in a repository and points the branch to a commit.
    See also: AWS API Documentation
    
    
    :example: response = client.create_branch(
        repositoryName='string',
        branchName='string',
        commitId='string'
    )
    
    
    :type repositoryName: string
    :param repositoryName: [REQUIRED]
            The name of the repository in which you want to create the new branch.
            

    :type branchName: string
    :param branchName: [REQUIRED]
            The name of the new branch to create.
            

    :type commitId: string
    :param commitId: [REQUIRED]
            The ID of the commit to point the new branch to.
            

    """
    pass
