@staticmethod
def project_help_block_message():
    """Assemble a block of relevant help text to be returned with an invalid request."""
    message = (
        'You must supply either a project id (like "/projectinfo/<project_id>")'
        )
    message += (
        ' or search for one using the form "/projectinfo/search/<search_term_1>+<search_term_2>"'
        )
    return message
