private boolean isRequestBodyWithMapType(MethodParameter parameter) {
		// Exclude parameters from the Actuator package
		if (parameter.getContainingClass().getPackageName().startsWith("org.springframework.boot.actuate")) {
			return false;
		}
		// Check for @RequestBody annotation
		org.springframework.web.bind.annotation.RequestBody requestBody = parameter.getParameterAnnotation(org.springframework.web.bind.annotation.RequestBody.class);
		if (requestBody == null) {
			return false;
		}
		// Check if the parameter type is assignable to Map
		Class<?> parameterType = parameter.getParameterType();
		return Map.class.isAssignableFrom(parameterType);
	}
Is request body with map type

@param parameter the parameter
@return the boolean
springdoc-openapi-starter-common/src/main/java/org/springdoc/core/service/AbstractRequestService.java