docstr: Return the configured schema.
  
  A MySQL database is a SQLAlchemy schema.
docstr_tok: ["Return","the","configured","schema",".","A","MySQL","database","is","a","SQLAlchemy","schema","."]
code: def get_schema_from_engine_params(
      cls,
      sqlalchemy_uri: URL,
      connect_args: dict[str, Any],
  ) -> Optional[str]:
      """
      Return the configured schema.
  
      A MySQL database is a SQLAlchemy schema.
      """
      return parse.unquote(sqlalchemy_uri.database)
  
imports: import contextlib
  import re
  from datetime import datetime
  from decimal import Decimal
  from re import Pattern
  from typing import Any, Callable, Optional
  from urllib import parse
  from flask_babel import gettext
  from sqlalchemy import types
  from sqlalchemy.dialects.mysql import BIT, DECIMAL, DOUBLE, FLOAT, INTEGER, LONGTEXT, MEDIUMINT, MEDIUMTEXT, TINYINT, TINYTEXT
  from sqlalchemy.engine.url import URL
  from superset.constants import TimeGrain
  from superset.db_engine_specs.base import BaseEngineSpec, BasicParametersMixin
  from superset.errors import SupersetErrorType
  from superset.models.sql_lab import Query
  from superset.utils.core import GenericDataType
label_desc: Use image node_id 3 for calling the MySQLEngineSpec obj's underlying member method code with example usage: obj.get_schema_from_engine_params(cls, sqlalchemy_uri, connect_args) and returns: parse