/**
 * Credentials and the endpoint may be given in the environment.
 *
 * Each variable overrides the corresponding stored value for as long as it
 * is set, so any of them may be used per command or per shell. Commands that
 * would store an overridden value fail instead: see {@link assertEnvVarUnset}.
 */
/** Overrides the token stored by `seam login`. */
export declare const tokenEnvVar = "SEAM_CLI_TOKEN";
/** Overrides the workspace stored by `seam select workspace`. */
export declare const workspaceIdEnvVar = "SEAM_CLI_WORKSPACE_ID";
/** Overrides the endpoint stored by `seam select endpoint`. */
export declare const endpointEnvVar = "SEAM_CLI_ENDPOINT";
export declare const getTokenFromEnv: () => string | null;
export declare const getWorkspaceIdFromEnv: () => string | null;
export declare const getEndpointFromEnv: () => string | null;
/** Reported without a stack trace: the environment is at fault, not the CLI. */
export declare class EnvVarOverrideError extends Error {
    name: string;
}
/**
 * Refuse to store a value the environment overrides.
 *
 * Storing it would have no effect while the variable is set, so a command
 * that appears to succeed would leave the CLI using something else.
 *
 * @param action What the command does, e.g., `log in`.
 */
export declare const assertEnvVarUnset: (envVar: string, envValue: string | null, action: string) => void;
/**
 * Whether the CLI runs inside a hosted web terminal, where it cannot open
 * anything in a browser of its own.
 */
export declare const isInsideWebBrowser: () => boolean;