class_docstr: An abstraction around lookup tables configuration. LookupTables can be configured in two places.
docstr: Returns a list of all of the table names that are configured
docstr_tok: ["Returns","a","list","of","all","of","the","table","names","that","are","configured"]
code: def table_names(self):
      """Returns a list of all of the table names that are configured"""
      return list(self.table_configurations.keys())
  
imports: from streamalert.shared.config import load_config
label_desc: Use image node_id 4 for calling the LookupTablesConfiguration obj's underlying member method code with example usage: obj.table_names() and returns: list